This page contains the firmware update files for aerQ Temperature and Humidity Sensor and forms part of the larger aerQ Temperature and Humidity Sensor user guide. 

Warning: This firmware update is specifically meant for ZWA039 aerQ Sensor, do not use these firmware updates over ZWA009 aerQ Sensor. If you are not sure what version you have, open up the aerQ Sensor back cover, and view the model number. 

This version is meant to improve the use of aerQ Temperature and Humidity sensor listed as model ZWA039 with internal firmware V2.00 / V2.0 specifically

Updating ZWA009 on V1.XX with firmware V2.01 or later will void warranty of that device if bricked with this firmware update. 


  • V2.01 (also known as V2.1.1)
    • Adds Parameter #92 to set and check battery calibration. 
  • V2.02 (also known as V2.2.1) 
    • Resolves issue where battery reports 0% when receiving Battery Get commands from the controller. 
  • V2.03 (also known as V2.3.1)
    • Improved how low battery alarm is handled. 

Download aerQ Temperature and Humidity Sensor V2.3.1

Before you update

Please make sure you download the correct Z-Wave Frequency and begin the update with the repeater as close as 10ft / 3m distance to your hub to avoid any possible firmware update issues to avoid bricking your device.

Ensure that your battery has adequate power, low power may result in a failed update (you can always try again on a new battery if the update doesn't complete). 

Update with an existing Z-Wave hub

In order to use the GBL update files, your Z-Wave gateway must support OTA firmware update. If supported, follow the steps from your Z-Wave Gateway to firmware update your Repeater.

  • Update with Z-WaveJS2MQTT
    1. Open ZWaveJS2MQTT Interface
    2. Expand your ZW039 aerQ Sensor
    3. Click on Advanced
    4. Under "Firmware Update" click on Begin
    5. Input 0, then click OK
    6. Now select the .GBL firmware update file for your ZWA039 aerQ Sensor that you downloaded above.
    7. To start the update - tap the button on your aerQ Sensor once to wake it up, and the firmware update should begin.

Update using a Z-Wave USB Adapter

If your software does not support .GBL files yet, you can use PC Controller 5 (connected to any standard Z-Wave USB Adapter) by SiLabs to firmware update with GBL files. This software is a Windows exclusive.

You can find that PC Controller 5 here through Simplicity Studio: SiLabs Simplicity Studio

Following the update below, make sure that you have your aerQ at least 10ft from your Z-Wave USB Adapter during the update to avoid any failures.

  1. Follow the steps outlined here to get access to Simplicity Studio and PC Controller 5:
  2. Download the correct Z-Wave Frequency firmware update for your aerQ.
  3. Open up Z-Wave PC Controller software through Simplicity Studio
  4. Plugin your Z-Wave USB Adapter
  5. Click on the "Gear" icon and select the COM port your Z-Wave USB Adapter is connected to.
  6. Click on "Network Management"
  7. Click on "Remove", then tap the button 3x times on aerQ Sensor.
  8. Click on "Add",  then tap the button 3x times on aerQ Sensor.
  9. Deselect all security options (this will help speed up your firmware update process), then press OK.
  10. Click and highlight your aerQ Sensor Node.
  11. Make sure that the Queue Override box is unchecked.

  12. Click on the Home icon button on the top left corner.
  13. Click on OTA Firmware Update.
  14. Ensure your aerQ Sensor node is highlighted.
  15. Then press Get (command will be queued to wait for wakeup).
  16. Tap the button once on your aerQ Sensor.
  17. Under Firmware Update, click on the folder icon.
  18. Then select the firmware update file you downloaded on step 2 of these instructions, then click Open.
  19. Highlight Target 0 (under Firmware Targets:).
  20. Then click on Update (command will be queued to wait for wakeup).
  21. Tap the button once on your aerQ Sensor.
  22. Wait a few minutes while you wait for the firmware update to finish.