Aranet4 Firmware Change Log

• 

  aranet-techsupport

  Posted: 28.11.2023 15:46

  Modified: 07.01.2026 21:45

  v2.0.7 (2025-05-08)

  • Initial custom threshold values now match default threshold values.
  • PRO versions can now disable screen refresh and measurement display.
  • Added platform support for the mioty protocol on PRO versions.

  v1.5.44 (2025-03-18)

  • Improved display driver stability.
  • Improved GUI: added sensor ID on screen.

  v1.4.19 (2024-08-26)

  • Improved battery life
  • Improved new battery detection in low battery state

  v1.4.14 (2023-11-28)

  • Optimized memory management to obtain up to 30 days of on-device data history.
  • Introduced CO2 on-demand measurement for all sensor HW types.
  • Bluetooth extended range functionality fixed to support all sensor HW types.

  v1.3.5 (2023-06-06)

  • Introduced CO2 on-demand measurement support.

  v1.2.0 (2022-10-12)

  • New Bluetooth service UUID.
  • Measurement data included in Bluetooth advertising packet.

  v0.4.10 (2021-10-13)

  • Reduced consumption of LoRa radio for PRO version HW.
  • CO2 sensor intermittent read failure fixed.
  • Sensor ID shown on screen for PRO version HW.
• 

  dbutler

  Posted: 30.11.2023 14:38

  Thank you for posting this. Please explain CO2 on-demand measurement. 
• 

  aranet-techsupport

  Posted: 30.11.2023 14:44

  Its an option in the Aranet Home App to make an instant Co2 measurment by pressing a button on the Aranet4 tab.
  
• 

  dbutler

  Posted: 17.12.2023 00:15

  Thanks. The last update includes "Optimized memory management to obtain up to 30 days of on-device data history"... 

  Logically, it seems like the number of days that can be stored on-device would depend on the selected measurement interval. If so, how many days at each interval? (1,2,5,10)
• 

  aranet-techsupport

  Posted: 18.12.2023 06:52

  Hi!
  
  We have updated the post about Aranet4 device memory, the information you ask can be found here:
  https://forum.aranet.com/all-about-aranet4/how-long-does-the-aranet4-device-store-historic-data/
• 

  dbutler

  Posted: 18.12.2023 18:06

  Modified: 19.12.2023 04:25

  Thanks. What about the storage limit for phone app? It used to be 2 weeks then at some point it increased to 30 days (as noted in the thread you linked). It must have been increased since then. My phone app currently holds 90 days of data with interval set to 2 minutes. Does that limit also depend on interval setting? 
• 

  aranet-techsupport

  Posted: 19.12.2023 15:13

  The storage limit on the app is set to 90 days, the measurment inteval or the amount of devices connected to the app don't matter in this instance.
• 

  victor

  Posted: 02.01.2025 11:19

  Modified: 02.01.2025 11:19

  Aranet Base Station does not show the FW version of Aranet4 Pro. Can you add it to future Base Station update?
• 

  aranet-techsupport

  Posted: 03.01.2025 08:30

  Wireless communication between the Aranet base station and sensors (including Aranet 4 PRO) is mainly a one-way protocol, with a two-way handshake initiated only during the pairing process.

  Pairing handshake has limitations and there is no possibility with current protocol implementation to indicate the firmware version. Also, note, that it may be a misleading feature as there is no way to update the indicated firmware version in case you would update the firmware from the app after the pairing. Therefore we do not see significant added value in it and it won't be implemented.

  Please use "Aranet Home" (Android or iOS) app to check and update the firmware version of Aranet 4 PRO sensor.
• 

  victor

  Posted: 05.01.2025 12:12

  As I understand there is a critical update for Aranet4, regarding the bricking of the device when the battery charge is low, so why can't I monitor the firmware version via the base station that can be updated same as Aranet4 by bluetooth?

  Updating by bluetooth from Home app, and monitor with base station , why it is not possible?

  And remove limitations of max 20 device from everywere (base station reports and Aranet Home App) !!!
• 

  aranet-techsupport

  Posted: 06.01.2025 06:50

  We cannot update the Aranet4 through the base station, because of LoRa communication, the bandwidth is just too low and the update package too large for the base station to update any sensor FW.
  The 20 sensor max devices for the Home app is because we can only guarantee normal operating for the app up to 20 sensors, any more than that and things become unstable and the sensors might not want to connect to your phone.
• 

  crisrich58

  Posted: 19.03.2025 14:35

  Yesterday the firmware on my Aranet4 was updated to v 1.5.44. What was changed?

  Do you have a page with firmware change logs on your product website that is kept up to date?
• 

  aranet-techsupport

  Posted: 19.03.2025 14:41

  Please see the updated initial post.
• 

  crisrich58

  Posted: 20.03.2025 18:16

  Jumping from v1.4.19 to v1.5.44 for just these two quite small changes?
• 

  aranet-techsupport

  Posted: 21.03.2025 07:22

  Firmware update is not forced. You may choose not to install the update.
• 

  bimbam

  Posted: 20.03.2025 18:37

  I got v1.4.19 (2024-08-26) and it says, that I have the latest version...?
• 

  aranet-techsupport

  Posted: 21.03.2025 07:23

  Modified: 21.03.2025 07:25

  That is expected.
  The firmware was temporarily removed for additional testing.
• 

  bimbam

  Posted: 31.03.2025 20:01

  Was the additional testing successful and it is safe to install now?   ☺️
• 

  aranet-techsupport

  Posted: 01.04.2025 05:21

  Yes, it is. If you encounter any issues let us know.
• 

  halogen3010

  Posted: 01.07.2025 18:22

  Hey my aranet4 only updated to v1.4.19 and it says this is the latest firmware. When could I expect the newer firmware to be available?
  
  Or is my device not working properly?
  
  Thanks
• 

  walkin

  Posted: 27.09.2025 19:55

  Bump
• 

  suchipi

  Posted: 31.12.2025 20:36

  I'm having the same issue as halogen3010 and walkin. I have two Aranet4 devices. One (rev14) says the latest firmware version is v1.4.19. The other (rev12) says the latest firmware version is v2.0.7. The one with the older firmware doesn't properly report the CO2 value in the app after making an on-demand measurement, and doesn't show the sensor ID on the screen. How can I get both of the devices to firmware v2.0.7?
• 

  aranet-techsupport

  Posted: 05.01.2026 10:59

  suchipi, the behavior you are observing is expected and related to hardware revisions, not a malfunction.
  The rev14 Aranet4 sensor is a newer hardware revision and differs internally from rev12, which is why the firmware versions are not aligned numerically.

  Due to these hardware differences:

  • rev12 sensors use firmware v2.0.7

  • rev14 sensors use firmware v1.4.19

  These firmware branches are not interchangeable, and it is not possible to update both devices to the same firmware version. Each revision is already running the latest firmware compatible with its hardware.

  If you notice persistent measurement issues beyond display or sync behavior, please let us know by contacting support@aranet.com
• 

  mattweisz

  Posted: 01.01.2026 07:33

  Is there a way to downgrade to v1.4.14 (2023-11-28)

  I am experiencing loss of range when I upgraded from that version to the latest. 
• 

  aranet-techsupport

  Posted: 05.01.2026 11:06

  Unfortunately, it is not possible to downgrade the firmware to v1.4.14 or any earlier version. Aranet devices support only upgrading the firmware, and rolling back to a previous firmware version is not supported.

  Regarding the reduced range you noticed after updating, the firmware update itself does not reduce transmission power. Changes in environment, sensor placement, interference, or battery condition can sometimes affect the perceived range. Also, if you are using the Aranet Home app, then please make sure to switch off the "Extended range" option, because sometimes this might be the cause for the issue.

You have to log in to reply.