Sensors – AVTECH https://avtech.com/articles Frequently Asked Questions Tue, 25 Nov 2025 13:24:24 +0000 en-US hourly 1 https://wordpress.org/?v=6.2.2 When A MAX Sensor Is Considered Disconnected https://avtech.com/articles/28879/when-a-max-sensor-is-considered-disconnected/ Thu, 08 May 2025 19:31:07 +0000 https://avtech.com/articles/?p=28879 Typically, wireless sensors and Wired Sensor Adapters send their data to the MAX Base Station multiple times per minute. If your Room Alert MAX Base Station has not received any new data from a paired wireless sensor or Wired Sensor Adapter in more than 2 minutes, you’ll see a timestamp in the Readings page, like […]

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Typically, wireless sensors and Wired Sensor Adapters send their data to the MAX Base Station multiple times per minute.

If your Room Alert MAX Base Station has not received any new data from a paired wireless sensor or Wired Sensor Adapter in more than 2 minutes, you’ll see a timestamp in the Readings page, like the one pictured below.

If 5 minutes elapses since the Base Station last received data, the sensor/adapter is considered Disconnected. If its configured to do so, the Base Station will send a Disconnection notification at this point.

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How To Pair Sensors & Adapters To Your MAX Base Station https://avtech.com/articles/28846/how-to-pair-sensors-adapters-to-your-max-base-station/ Thu, 08 May 2025 16:28:26 +0000 https://avtech.com/articles/?p=28846 Pairing Follow these steps to pair a wireless sensor or Wired Sensor Adapter to your MAX Base Station: You’ll know its in Pairing Mode when you see . Troubleshooting If you’re having trouble pairing a sensor or Wired Sensor Adapter, it’s possible that the device is stuck in bonded mode. To check: You can see […]

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Pairing

Follow these steps to pair a wireless sensor or Wired Sensor Adapter to your MAX Base Station:

  1. First, open the Base Station’s web interface.
    You may do this by typing its IP address directly into your browser’s URL.
    For help, please see How To Discover A Room Alert Monitor & How To Open Your Room Alert Monitor’s Built-in Web Interface.
  2. Log In to the web interface.
    For help, please see How To Access A Room Alert Monitor’s Password-Protected Pages.
  3. Navigate to SettingsSensor Connections.
  4. Click the + Pair new sensor or adapter button.
  5. In the first window that appears, enter the unit’s pairing PIN.
    • This 6-digit PIN can be found on the unit’s sticker.
      • For Wireless Temperature/Humidity sensors, this sticker is located inside the sensor’s battery compartment.
      • For Wired Sensor Adapters, this sticker is located on the bottom of the unit.
  6. Click Next. The modal will progress to the next set of instructions.
  7. Then, press the PAIR button on the bottom/back of the sensor/adapter to put it into Pairing mode.
    • You’ll know its in Pairing Mode when you see its LED begin to steadily blink.

You’ll know its in Pairing Mode when you see its LED begin to steadily blink .

  1. Once the unit is in Pairing Mode, click Pair.
  2. Your Base Station should discover the unit and pair with it.
  3. You’ll see the unit’s name (the last 4 digits of its MAC, by default) appear in the list. A sensor/adapter placeholder will immediately appear in the Readings page; it may take a minute to load initial data.

Troubleshooting

If you’re having trouble pairing a sensor or Wired Sensor Adapter, it’s possible that the device is stuck in bonded mode. To check:

  1. First, power-cycle the device—either by unplugging its power adapter and/or removing its batteries for a couple seconds.
  2. Upon replacing the power adapter and/or batteries, the device’s LED will indicate its bonded status:
    • A single LED flash = the device is not bonded
    • 2 LED flashes = the device is bonded

You can see an example of the Bonded State here .

  1. If the device’s status is bonded, you may reset it by holding-in its PAIR button until you see 3 rapid flashes, then release.
    • This means the bond has cleared.

You can see an example of the un-bonding LED pattern here

  1. Retry the pairing process with your Base Station.

If you continue to have trouble pairing the sensor (or Wired Sensor Adapter), try bringing it closer to the Base Station.

Forget Sensor

Follow these steps to unpair a wireless sensor or Wired Sensor Adapter from your MAX Base Station:

  1. First, open the Base Station’s web interface.
    You may do this by typing its IP address directly into your browser’s URL.
    For help, please see How To Discover A Room Alert Monitor & How To Open Your Room Alert Monitor’s Built-in Web Interface.
  2. Log In to the web interface.
    For help, please see How To Access A Room Alert Monitor’s Password-Protected Pages.
  3. Navigate to SettingsSensor Connections.
  4. In the list of paired sensors and adapters, locate the unit you wish to unpair.
  5. Select the ellipses beside the desired unit, and then choose Forget.

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How To Rename Your Device And Sensors In The Room Alert Monitor’s Web Interface https://avtech.com/articles/12214/how-to-rename-your-device-and-sensors-in-the-room-alert-monitors-web-interface/ Mon, 25 Nov 2024 20:51:23 +0000 https://avtech.com/articles/?p=12214 Your Room Alert Monitor’s device name and sensor labels appear in the following places: Give your Room Alert Monitor a more descriptive name to easily identify it, and add custom sensor labels to mark the location or purpose of sensors. For instructions, please select the tabs below.

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Your Room Alert Monitor’s device name and sensor labels appear in the following places:

  • the Status page of its web interface
  • your account at RoomAlert.com
  • Room Alert Manager (Room Alert ‘S’, ‘E’, and ‘W’ models only)
  • Room Alert Discovery utility

Give your Room Alert Monitor a more descriptive name to easily identify it, and add custom sensor labels to mark the location or purpose of sensors. For instructions, please select the tabs below.

Room Alert MAXRoom Alert 32S, 12S, 3S, 32E/W, 12E, 4E, and 3ERoom Alert 3W
  1. First, open the Base Station’s web interface.
    You may do this by typing its IP address directly into your browser’s URL.
    For help, please see How To Discover A Room Alert Monitor.
  2. Log In to the web interface.
    For help, please see How To Open Your Room Alert Monitor’s Built-in Web Interface.
  3. The Readings page will open.
  • In our example, the default device name is “MAXB-D4E5F6.”
  • The digital sensors labels are “Internal Sensor” and “ABCD.”
To rename your Room Alert Monitor...
  1. Click the cog icon in the upper right corner of the main page header (next to the device’s MAC address).
  2. In the Update Device Name window, enter the new name.
  3. Click the Update button.
To rename your sensors...
  1. Locate the sensor(s) you wish to edit.
  2. Click the cog icon in the upper right corner of the sensor card.
  3. In the Settings window, enter the new sensor label.
  4. Click the Save button.
After you've saved your changes..
  • The new device name and sensor labels will appear in your Room Alert Account when the device pushes new data to RoomAlert.com.
    Please note that you can overwrite the labels in your Room Alert Account by following the instructions in this FAQ: How To Rename Devices And Sensors In Your RoomAlert.com Account.
  • The new device name will appear in the Room Alert Discovery utility after the next scan.

To edit your Room Alert Monitor’s device name and sensor labels, first open the Room Alert Monitor web interface using Room Alert Discovery, Room Alert Manager, or your account at RoomAlert.com. You may also type the IP address of the unit directly into the address bar of your web browser.

  • In our example, the default device name is “RA32-D4E5F6.”
  • The digital sensors labels are “Internal Sensor,” “Ext Sensor 1” and “Ext Sensor 2.”
To rename your Room Alert Monitor...
  1. First, navigate to the device’s Settings–> Network page.
  2. In Device Name, enter the new name.
  1. Then select Save Settings at the top or bottom of the page.
  2. The unit will reboot to commit your changes.
To rename your sensors...
  1. First, navigate to the device’s Settings –> Sensors page.
  2. Next, locate the sensor(s) you wish to edit.
  3. In Sensor Label, enter the new label.
  1. Then select Save Settings at the top or bottom of the page.
  2. The unit will reboot to commit your changes.
After you've saved your changes..

Your Room Alert Monitor’s new device name and sensor labels will appear in the Status page, as shown below.

  • The new device name and sensor labels will appear in your Room Alert Account when the device pushes new data to RoomAlert.com.
    Please note that you can overwrite the labels in your Room Alert Account by following the instructions in this FAQ: How To Rename Devices And Sensors In Your RoomAlert.com Account.
  • The new device name and sensor labels will appear in Room Alert Manager after the next scan.
  • The new device name will appear in the Room Alert Discovery utility after the next scan.

Please note that there isn’t any way to change the Room Alert 3 Wi-Fi’s device name on the unit, itself. If you are using your Room Alert Account to monitor your device, you may change its name at RoomAlert.com. For instructions, please see our FAQ, How To Rename Devices And Sensors In Your RoomAlert.com Account.

To change your device’s sensor labels, first open the Room Alert Monitor web interface using Room Alert Discovery, Room Alert Manager, or your account at RoomAlert.com. You may also type the IP address of the unit directly into the address bar of your web browser.

  • In our example, the default device name is “RA3W-D4E5F6.”
  • The sensors labels are “Internal Sensor,” “Ext Sensor 1” and “Switch Sen 1.”
To edit your sensor labels...
  1. First, navigate to the device’s Alert Options –> Sensors page.
  2. Next, locate the sensor(s) you wish to edit.
  3. In Sensor Label, enter the new label.
  1. Then select Save Settings at the bottom of the page.
  2. The unit will reboot to commit your changes.
After you've saved your changes...

Your Room Alert Monitor’s new sensor labels will appear in the Status page, as shown below.

  • The new sensor labels will appear in your Room Alert Account when the device pushes new data to RoomAlert.com.
    Please note that you can overwrite the labels in your Room Alert Account by following the instructions in this FAQ: How To Rename Devices And Sensors In Your RoomAlert.com Account.
  • The new sensor labels will appear in Room Alert Manager after the next scan.

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How To Apply A PoE Temperature Adjust To Your Room Alert 3S or 12S https://avtech.com/articles/26156/how-to-apply-a-poe-temperature-adjust-to-your-room-alert-3s-or-12s/ Tue, 01 Aug 2023 12:49:34 +0000 https://avtech.com/articles/?p=26156 Using a Room Alert 3E monitor? Please click here for the appropriate FAQ. Typically, when your Room Alert 3S or 12S runs on PoE (Power over Ethernet), it generates some additional heat, which can be difficult to dissipate in the unit’s small enclosure. The Apply PoE Temperature Adjust option, located in the Room Alert Monitor Sensor Settings, […]

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Using a Room Alert 3E monitor? Please click here for the appropriate FAQ.

Typically, when your Room Alert 3S or 12S runs on PoE (Power over Ethernet), it generates some additional heat, which can be difficult to dissipate in the unit’s small enclosure. The Apply PoE Temperature Adjust option, located in the Room Alert Monitor Sensor Settings, automatically adjusts for this heat difference.

Room Alert 3S only: if you’re updating from firmware v1.6.12 or an earlier version, and your Room Alert 3S is running on PoE at the time of the firmware update, the PoE temperature adjust option will be enabled by default.

Enable PoE Temperature Adjust

If your Room Alert 3S or 12S is running on PoE and reading approximately 5° – 10° Fahrenheit higher than expected, please follow these instructions:

  1. First, open your Room Alert Monitor’s web interface.
  2. Next, navigate to the Settings –> Sensors page.
  3. Then, in the Sensor Settings page, locate the Internal Temperature Sensor’s interface.
  4. Here, you’ll see a checkbox labeled “Apply PoE (Power over Ethernet) Temperature Adjust.”
  5. Click the checkbox to enable the automatic temperature adjust.
  6. Then select Save Settings.
  7. After the unit reboots, navigate to the Room Alert Monitor Status page to view the adjusted sensor reading.
  8. If needed, you may further adjust the reading by following the instructions in our FAQ, How To Adjust A Sensor Reading On A Room Alert Monitor.
  9. Once this is done, no further changes are needed, and you should see the temperatures reported by the Room Alert Monitor track accurately with the outside temperature of the room.

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Why Your Room Alert 12E Built-in Relay Behavior May Be Reversed https://avtech.com/articles/22357/why-your-room-alert-12e-built-in-relay-behavior-may-be-reversed/ Thu, 02 Jul 2020 18:56:23 +0000 https://avtech.com/articles/?p=22357 How To Check If Your Room Alert 12E Built-in Relay Behavior Is Reversed One way to check if your Room Alert 12E’s relay behavior is reversed is to run a trace on the device. The beginning of the trace—referred to as the “trace header”—contains basic information about your device, including its PIC version. To start […]

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If you purchased a Room Alert 12E in 2021, the behavior of the device’s built-in relay* may be reversed.

This means that when the device’s Status page shows the built-in relay as ON, its actual physical state is OFF, and vice versa.

* This behavior does not extend to external relays. If you have an external Relay Switch Sensor connected to your Room Alert 12E through a Light Tower & Relay Adapter, it should behave normally.

How To Check If Your Room Alert 12E Built-in Relay Behavior Is Reversed

One way to check if your Room Alert 12E’s relay behavior is reversed is to run a trace on the device. The beginning of the trace—referred to as the “trace header”—contains basic information about your device, including its PIC version.

  1. To start a trace on your device, follow the instructions in this FAQ: How To Generate A Trace On A Room Alert Monitor.
  2. Once your trace begins, you should see “PIC: 0X” in the trace header.
    • If your trace shows “PIC: 04” as shown in the screenshot above, then your device’s relay behavior is reversed.
    • If you see “PIC: 03” or a lower value, then your device’s relay behavior is normal (not reversed).

Alternatively, you may check your Room Alert 12E’s PIC version by accessing its JSON data in your web browser.

  1. To access your device’s JSON data, follow the instructions in this FAQ: Where To Find Room Alert Monitor JSON Data.
  2. In the JSON data, you should see “picvers”:”0X.”
    • If your trace shows “picvers”:”04″ as shown in the screenshot above, then your device’s relay behavior is reversed.
    • If you see “picvers”:”03″ or a lower value, then your device’s relay behavior is normal (not reversed).

What To Do If Your Room Alert 12E Built-in Relay Behavior Is Reversed

If you confirm that your Room Alert 12E is running PIC v04, then you should configure your relay settings* to be the opposite of the desired behavior.

* This is true whether you are configuring your relay settings through the device’s local web interface, Room Alert Manager software, or a third party SNMP program.

  • For example, if you want the built-in relay to be OFF when the device first boots up, set its Boot Profile to ON, as shown below.
    • In the above example, when our device first boots up, its built-in relay will physically be off, even though the Status page will show it as On.
  • Similarly, if you want the built-in relay to turn ON when an alert is triggered, set its Alarm Profile to OFF, as shown below.
    • In the above example, when an alarm associated with Profile 1 gets triggered, our Room Alert 12E’s built-in relay will physically turn on, even though the Status page will show it as Off.

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The Difference Between The Previous And Current Temperature & Humidity Sensor Cap https://avtech.com/articles/12915/the-difference-between-the-previous-and-current-temperature-humidity-sensor-cap/ Tue, 04 Dec 2018 15:33:11 +0000 https://avtech.com/articles/?p=12915 AVTECH continues to evaluate opportunities to improve our products, and this is one example of that focus. Using RoomAlert.com made it easy to compare results across different variations of sensors with changing conditions over varying time periods. We hope this illustrates both our commitment to overall product quality, as well as how you may use […]

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Original single-hole sensor cap

The original cap on AVTECH’s Digital Temperature & Humidity Sensor has 1 hole on the tip of the probe; this approximately 0.1″ diameter hole allows some air circulation around the humidity and temperature sensing components inside.


New honeycomb sensor cap (available Dec. 7, 2018)

The new honeycomb-style cap features 4 columns with 6 air holes each around the body. These 0.1″ diameter holes promote much greater air circulation around the humidity and temperature  sensing components inside.

Only the cap on the sensor has changed; the internal components remain the same.

Effect of greater air flow on humidity readingsEffect of greater air flow on temperature readings

The report created in RoomAlert.com shown below compares the readings generated by the original and new cap when the Digital Temperature & Humidity Sensor probe is exposed to rapidly rising and falling humidity over the course of approximately 2 hours.

This report shows that greater air flow around the humidity sensing component means a faster response to changes, greater accuracy in readings and wider range of perception. For more details, select any of the features below.

Faster response

Using the horizontal and vertical zoom feature in RoomAlert.com, we can see a close-up of the humidity rising at the beginning of the curve.

The red dots inserted on the 40% to 70% RH grid lines show the new honeycomb cap reaching the same reading faster than the original; the higher the humidity soars, the further the honeycomb cap outpaces the original.

Greater accuracy

Again using the horizontal and vertical zoom feature in RoomAlert.com, we get a close-up of the humidity as it begins to plummet at the other end of the curve.

You can see in the red triangle that the original cap’s initial response to the humidity plummeting is much flatter than that of the honeycomb; because the honeycomb-capped sensor can respond faster, it’s readings are more accurate in changing conditions.

Wider range

Because the sensor responds faster, it sees a greater range of humidity in less time. Again using the horizontal and vertical zoom feature in RoomAlert.com, we get a close-up of the plateau of the curve:

The readings from the honeycomb cap reach into the 90s, plateauing at about 93.5% RH, while the original reaches up only into the mid-80s, starting to plateau at about 85.5%.

The report created in RoomAlert.com shown below compares the readings generated by the original and new cap when the Digital Temperature & Humidity Sensor probe is exposed to rapidly rising and falling temperature over the course of approximately 3 hours.

This report shows that greater air flow around the temperature sensing component means a faster response to changes, greater accuracy in readings and wider range of perception. For more details, select any of the features below.

Faster response

Using the horizontal and vertical zoom feature in RoomAlert.com, we can see a close-up of the temperature rising at the beginning of the curve.

The red dots inserted on the 60 to 90° F grid lines show the new honeycomb cap reaching the same reading faster than the original; the higher the temperature goes, the further the honeycomb cap outpaces the original.

Greater accuracy

Again using the horizontal and vertical zoom feature in RoomAlert.com, we get a close-up of the temperature as it begins to drop at the other end of the curve.

You can see in the red triangle that the original cap’s response to the temperature dropping is flatter than that of the honeycomb; because the honeycomb-capped sensor can respond faster, it’s readings are more accurate in changing conditions.

Wider range

Because the sensor responds faster, it sees a greater range of temperature in less time. Again using the horizontal and vertical zoom feature in RoomAlert.com, we get a close-up of the plateau of the curve:

The readings from the honeycomb cap reach up to and plateau at about 119° F, while the original only reaches up to and plateaus at about 115° F.

AVTECH continues to evaluate opportunities to improve our products, and this is one example of that focus. Using RoomAlert.com made it easy to compare results across different variations of sensors with changing conditions over varying time periods. We hope this illustrates both our commitment to overall product quality, as well as how you may use tools like RoomAlert.com to evaluate and report on conditions in your own environment.

If you would like to upgrade your existing Digital Temperature & Humidity Sensor to the new honeycomb-style cap (available Dec. 7, 2018), please contact your Product Specialist at Sales@AVTECH.com.

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How To Set The Sensor Type For Your External Digital Sensor https://avtech.com/articles/12725/how-to-set-the-sensor-type-for-your-external-digital-sensor/ Fri, 09 Nov 2018 21:35:47 +0000 https://avtech.com/articles/?p=12725 1. First open your Room Alert Monitor’s web interface through one of Room Alert’s discovery utilities. You may also type the IP address of the unit directly into the address bar of your web browser. 2. Next, navigate to the device’s Settings –> Sensors page. 3. Scroll to your external digital sensor(s), the total number of which will vary depending on […]

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If you connect a Temperature & Analog sensor, Temperature & Active Power sensor or Temperature & Air Flow sensor to your Room Alert Monitor, you must manually set its Sensor Type; otherwise, the sensor type is set to “Temperature / Humidity” by default.

To set the Sensor Type in your Room Alert Monitor’s web interface follow these steps:

1. First open your Room Alert Monitor’s web interface through one of Room Alert’s discovery utilities. You may also type the IP address of the unit directly into the address bar of your web browser.

2. Next, navigate to the device’s Settings –> Sensors page.

3. Scroll to your external digital sensor(s), the total number of which will vary depending on the Room Alert model.

4. Find the digital sensor interface that matches the port you connected your sensor to.

5. Notice that the drop-down list in Sensor Type defaults to Temp/Humidity.

– If you’re working with a Temperature & Analog sensor, select Temp/Analog.

– If you’re working with Temperate & Active Power sensor, select Temp/Active Power.

6. Select Save Settings at the top or bottom of the page. Your Room Alert Monitor will automatically reboot and commit your changes.

7. Your Room Alert Status page will now show the correct sensor type.

– This will be updated at RoomAlert.com and Room Alert Manager, as well.

The Temperature & Analog sensor, Temperature & Active Power sensor, and Temperature & Air Flow sensor do not have the capability to measure humidity. If you leave the Sensor Type set to Temp/Humidity, you will not get an accurate humidity reading from these sensors.

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How To Create Monitor360 Sensors In Your RoomAlert.com Account https://avtech.com/articles/11406/how-to-create-monitor360-sensors-in-your-roomalert-com-account/ Wed, 25 Jul 2018 16:48:29 +0000 https://avtech.com/articles/?p=11406 Monitor360 Features If your organization’s Room Alert Account has been upgraded to the Professional level or higher, you may take advantage of the advanced sensor features of Monitor360:

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Monitor360 Features

If your organization’s Room Alert Account has been upgraded to the Professional level or higher, you may take advantage of the advanced sensor features of Monitor360:

Average/Min/Max

Difference

Multiple Threshold


First, open the New Monitor360 Sensor menu.

To open the menu, follow these steps:

1. Log in to your account at RoomAlert.com.

In order to configure or edit a Monitor360 sensor, you must log in as an admin-level or operator-level user. For more information, please see the “Types of user roles” section of our FAQ, How To Manage User Access To Your RoomAlert.com Account.

2. Select Monitor360 from the navigation bar to the left.

3. On the Monitor360 Sensors page, select New Monitor360 Sensor.

4. A menu of sensor types will appear.

Next, choose a Monitor360 sensor type and add Room Alert sensors to it.

You may choose Average/Min/Max, Difference, or Multiple Threshold.

Average/Min/MaxDifferenceMultiple Threshold

You may get the average, minimum or maximum reading from a group of Room Alert sensors of the same type. These sensor types are available:

  • Temperature
  • Heat Index
  • Dew Point
  • Humidity
  • Analog Voltage
  • Analog Custom Scale
To create your sensor, follow these steps:

1. Under Choose a Monitor360 sensor type, select Average/Min/Max.

2. In the menu that appears:

– In Calculate, select the type of calculation you want to do. In our example, we’re selecting average.

– In for these sensors, select Add a Sensor.

3. In the dialog box that appears:

– In Device, select a Room Alert from the drop-down menu. In our example, we’re choosing Example RA32E.

– In Sensor, select the sensor you’d like to add to your set. Here, we’re choosing Data Center North-Temperature.

– Then select Add Sensor.

4. Your sensor will now appear in the for these sensors list.

– The sensor listing includes the last reading RoomAlert.com received and the corresponding time stamp for that reading.

– If you change your mind about a sensor, you can remove it using the delete icon.

5. Select Add a Sensor again and fill out the dialog box for as many more sensors as you wish. The minimum required to calculate Average/Max/Min is 2.

6. Once you add a second sensor, a running calculation displays in Result. This field responds to your adding or removing sensors as you go along.

7. When you’re ready, name your sensor in Name. We’re calling ours “Average Data Center Temp.”

8. Then select Create Sensor. (Or Cancel to exit without saving.) Below you can see the completed set up.

9. Your new Monitor360 sensor will then populate your Monitor360 Sensors list, showing the last reading for your calculated value. In our example, we see that the average of our 4 temperature sensors is 78.04° F as of the last reading:

You may get the absolute difference between two Room Alert sensors of the same type. These sensor types are available for a Difference calculation:

  • Temperature
  • Heat Index
  • Dew Point
  • Humidity
  • Analog Voltage
  • Analog Custom Scale
To create your sensor, follow these steps:

1. Under Choose a Monitor360 sensor type, select Difference.

2. In the menu that appears, select Add a Sensor.

3. In the dialog box that appears:

– In Device, select a Room Alert from the drop-down menu. In our example, we’re choosing Example RA12E.

– In Sensor, select the sensor you’d like to add to your pair. Here, we’re choosing AC Intake-Temperature.

– Then select Add Sensor.

4. Your sensor will now appear in the for these sensors list.

– The sensor listing includes the last reading RoomAlert.com received and the corresponding time stamp for that reading.

– If you change your mind about a sensor, you can remove it using the delete icon.

5. Select Add a Sensor again and fill out the dialog box for your second sensor. The maximum allowed for Difference is 2.

6. Once you add the second sensor, an absolute difference calculation displays in Result. This field will return to “NA” when you delete one or both of your chosen sensors.

7. When you’re ready, name your Monitor360 Multiple Threshold sensor in Name. We’re calling ours “Delta Temp AC Intake vs Output.”

8. Then select Create Sensor. (Or Cancel to exit without saving.) Below you can see the completed set up.

9. Your new Monitor360 sensor will then populate your Monitor360 Sensors list, showing the last reading for your calculated value. In our example, we see that the absolute difference between our two temperature sensors is 3.85° F as of the last reading:

The Multiple Threshold feature allows you to create a single test for multiple sensors. All Room Alert sensor types are available for a Multiple Threshold test.

To create your sensor, follow these steps:

1. Under Choose a Monitor360 sensor type, select Multiple Threshold.

2. In the menu that appears, select Add Condition.

3. In the dialog box that appears:

– In Device, select a Room Alert from the drop-down menu. In our example, we’re choosing Example RA32E.

– In Sensor, select the sensor you’d like to add to your set. Here, we’re choosing Data Center-Temperature.

– In is, select your operator and enter a value. Here, we’re entering greater than 75º F.

– Then select Add Condition.

4. Your condition will now appear in the condition list:

– The condition listing includes the last reading RoomAlert.com received and the corresponding time stamp for that reading.

– If you change your mind about a condition, you can remove it using the delete icon.

5. Select Add Condition again and fill out the dialog box for a many conditions as you wish. The minimum required for a Multiple Threshold test is 2.

6. Once you add the second condition, a running Met/Not Met calculation displays in Result. Met displays only if all your conditions are true.

7. When you’re ready, name your Monitor360 Difference sensor in Name. We’re calling ours “Data Center AC Problem.”

8. Then select Create Sensor. (Or Cancel to exit without saving.) Below you can see the completed set up.

9. Your new Monitor360 sensor will then populate your Monitor360 Sensors list, showing the last Met/Not Met calculation for your set of conditions. In our example, we see that our conditions are Not Met:

Finally, set up an alert on your Monitor360 sensor if you wish.

If you wish, you may set up alerts on your Monitor360 sensors. Please see How To Create Alerts In Your RoomAlert.com Account for details on configuring alerts.

The only step that is specific to Monitor360 is what you choose for Device in the Trigger alert when… step.

– When you get to the Device field, choose Monitor360 Sensors.

– Then, in Sensors, you’ll see all the Monitor360 sensors you’ve created.

Below are sample thresholds for the Monitor360 sensors we’ve created in this FAQ.

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How Dew Point Is Calculated By Room Alert https://avtech.com/articles/9417/dew-point-calculated-room-alert/ Wed, 29 Nov 2017 18:12:34 +0000 http://avtech.com/articles/?p=9417 There are different ways to calculate dew point. More complex formulas are more precise, but require more processing power. Simpler dew point formulas require less processing power and time, but are less granular. Monitoring Dew Point in the Room Alert Monitor web interface The Room Alert Monitor uses a simpler calculation to monitor dew point. This […]

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There are different ways to calculate dew point. More complex formulas are more precise, but require more processing power. Simpler dew point formulas require less processing power and time, but are less granular.

Monitoring Dew Point in the Room Alert Monitor web interface

The Room Alert Monitor uses a simpler calculation to monitor dew point. This simpler formula allows the single on-board processor to continue with other calculations for the unit’s other sensors.

The Room Alert Monitor calculates dew point only when the relative humidity is over 45%. Humidity levels below 45% do not have any serious impact on dew point. Likewise, the moisture content in the air at those levels should not have any negative impact on equipment or people.

If dew point is less critical for you than other environment factors, using the Room Alert Monitor web interface to alert and report dew point is sufficient.

Monitoring Dew Point in your Room Alert Account

Your account at RoomAlert.com, on the other hand, calculates dew point with a more complex (and thus, more precise) formula. It uses the processing power of the many servers providing the RoomAlert.com service to do so.

Unlike your Room Alert Monitor, your Room Alert Account is able to calculate the precise dew point across the entire temperature and humidity range.

We encourage users in a sensitive environment who need an exact dew point calculation to use their Room Alert Account for dew point alerting and reporting.

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WiSH / WiSPR Wireless Specifications https://avtech.com/articles/9367/wish-wispr-wireless-specifications/ Fri, 03 Nov 2017 17:52:16 +0000 http://avtech.com/articles/?p=9367 The table below outlines the wireless specifications of AVTECH’s Wireless Sensor Hub (PWiSH) and Wireless Sensor Hub & Powered Relay (WiSPR), which are used to relay sensor data to the Room Alert 32W.

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The table below outlines the wireless specifications of AVTECH’s Wireless Sensor Hub (PWiSH) and Wireless Sensor Hub & Powered Relay (WiSPR), which are used to relay sensor data to the Room Alert 32W.

Frequency Band 2.4Ghz
Encryption 128-bit AES
Transmit Power (WiSH) 1 mW (+0 dBm)
Transmit Power (WiSPR / RA32W) 60 mW (+18 dBm)
Receiver Sensitivity (WiSH) -92 dBm
Receiver Sensitivity (WiSPR / RA32W) -100 dBm
FCC (WiSH) OUR-XBEE
FCC (WiSPR / RA32W) OUR-XBEEPRO
IC (WiSH) 4214A-XBEE
IC (WiSPR / RA32W) 4214A-XBEEPRO
ETSI Yes
C-TICK Yes
TELEC Yes

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