The Mars Soiling Sensor firmware (Atonometrics Part Number 500079) is software that runs your Mars unit. It is updated periodically for new features and improvements. For release notes, see Mars Firmware Release Notes


Use the link below to download the latest Mars Soiling Sensor firmware. 


Installation Instructions:

  • Download the latest firmware using the link at the bottom of this page.
    • NOTE: This firmware is contained in a .zip file which will be loaded directly onto your Mars unit. You cannot open the .zip file on your computer.
  • Connect to your Mars unit via a web browser. (For instructions, see the Mars User Guide.)
  • From "Support" / "Update Configuration", press "Select Files"
  • Navigate to the downloaded firmware .zip file on your PC and select it
  • Press “Send File(s)” to send the file to your Mars unit
  • Wait ~5 minutes while the software is being applied. Do not remove power from the unit during the update.
    • When updating from R4363 or later, installation progress messages will be displayed.
    • When updating from releases before R4363, no progress is displayed. Wait 5 minutes..
  • If needed, refresh the web page in your web browser
  • Confirm that the web page shows Firmware Version equal to the version number of the downloaded .zip file
  • Confirm Status = Normal