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Firmware Archive

The firmware archive page provides access to all previous firmware versions, organised by sensor serial number for easy reference.

For sensors with serial numbers 300200 and above

How to check your serial number

DateTypeVersionUpdate Info
11/26/2025Driver = STMSTM_10.11Improved Sensor Stability. Greater Calibration Accuracy. New Modbus command for read only data loggers. Bug fix for freshwater. Improved salinity variability handling. Smoother BMS hardware integration.
11/26/2025Interface = BIB_10.11.05As STM_10.11
10/06/2025Driver = STMSTM_10.10Enhanced calibration accuracy across the entire salinity range. Bug fix for freshwater applications. Improved salinity variability handling. Smoother BMS hardware integration.
10/06/2025Interface = BIB_10.10As STM_10.10
20/03/2025Driver = STMSTM_10.8New Modbus command to switch from terminal to Modbus and for configuring power and salinity. Fixed data-saving issues in Modbus and removed legacy scan commands. Enhanced calibration accuracy in low-salinity, and expanded operation down to 50 µS/cm. Faster measurement intervals. Improved data processing.
20/03/2025Interface = BIB_10.8As STM_10.8
For sensors with serial numbers 300028 - 300200

How to check your serial number

DateTypeVersionUpdate Info
11/26/2025Driver = ATXATX_10.11Improved Sensor Stability. Greater Calibration Accuracy. New Modbus command for read only data loggers. Bug fix for freshwater. Improved salinity variability handling. Smoother BMS hardware integration.
11/26/2025Interface = BIB_10.11.05As ATX_10.11
10/06/2025Driver = ATXATX_10.10Enhanced calibration accuracy across the entire salinity range. Bug fix for freshwater applications. Improved salinity variability handling. Smoother BMS hardware integration.
10/06/2025Interface = BIB_10.10As ATX_10.10
20/03/2025Driver = ATXATX_10.8New Modbus command to switch from terminal to Modbus and for configuring power and salinity. Fixed data-saving issues in Modbus and removed legacy scan commands. Enhanced calibration accuracy in low-salinity, and expanded operation down to 50 µS/cm. Faster measurement intervals. Improved data processing.
20/03/2025Interface = BIB_10.8As ATX_10.8
For sensors with serial numbers 300001 - 300027

How to check your serial number

DateTypeVersionUpdate Info
11/26/2025Driver = ATXATX_10.11Improved Sensor Stability. Greater Calibration Accuracy. New Modbus command for read only data loggers. Bug fix for freshwater. Improved salinity variability handling. Smoother BMS hardware integration.
11/26/2025Interface = AIA_10.11.05As ATX_10.11
10/06/2025Driver = ATXATX_10.10Enhanced calibration accuracy across the entire salinity range. Bug fix for freshwater applications. Improved salinity variability handling. Smoother BMS hardware integration.
10/06/2025Interface = AIA_10.10As ATX_10.10
20/03/2025Driver = ATXATX_10.8New Modbus command to switch from terminal to Modbus and for configuring power and salinity. Fixed data-saving issues in Modbus and removed legacy scan commands. Enhanced calibration accuracy in low-salinity, and expanded operation down to 50 µS/cm. Faster measurement intervals. Improved data processing.
20/03/2025Interface = AIA_10.8As ATX_10.8
Bootloader Archive

If you are running Interface I_5.0 or below, please upgrade your bootloader before upgrading to the newest interface

  • Download and unzip the bootloader file

  • Connect the power and the communication cable to a computer and the Sensor. (If using the Data Transfer Unit (DTU) plug it into the USB port of a computer and the SubConn end into the Sensor)

  • Launch a Terminal program (such as Tera Term)

  • In the Set-up tab select serial port

    • Select the correct com port
    • Select speed = 19200, Data = 8bit, Parity = none, Stop bits = 1, flow control = xon/xoff
    • Transmit delay set to 0 sec/char and 50 msec/line
    • Click 'New open'

  • In the Set-up tab select Terminal

    • New line options in resulting window should be Receive = CR+LF and Transmit = CR+LF
    • Switch off Local echo
    • Click OK

  • Turn on CAPS LOCK

  • Holding down the U key and ensuring the sensor is dry, switch on the DTU. (Note: This should be done simultaneously)

  • The monitor will display a version number and a > symbol

  • Turn off CAPS LOCK and type pf [ENTER]

  • The monitor will display pf+

  • On tera term go to file > send file

  • Browse to where firmware update has been saved and click ‘open’

  • The update progress to the system is indicated by ‘..*...*...*...’ which will continue until the update is complete

tip

If no + is displayed, disconnect sensor from power and repeat steps above
If no + persists after repeating the procedures please contact support@anbsensors.com

  • > is then displayed

  • Type 'g' [ENTER]

caution

after typing 'g' do not interrupt the power supply

  • The monitor will display g+

  • The monitor will display the following

=== Bootloader Maintenance ===
==============================
The current Bootloader version is 0920702B0 and is being upgraded..

Do Not interrupt the power supply during this operation

1) Erasing.. Boot block erased
2) Loading.. ok
3) CRC Checking.. ok

The installed Bootloader, version 0920702B1, is the latest

You bootloader is now the latest version and you can upgrade your firmware