Überblick

The Mars™ Soiling Sensor provides simplified measurement of soiling losses for PV installations. 
Patented Mars™ technology detects accumulated soiling particles on a soil collection window 
using an internal camera. Mars™ units require no water, have no moving parts, are compact and 
easy to install, and do not require site-specific dust calibration or technician cleaning visits. They 
are suitable for a wide range of PV installations. 
This User Guide is for Mars™ model 810230-20, Hardware Revision 01 released August 2023 
(810230-20-01), shown in Figure 1-1. This model replaces all earlier versions and model 
numbers. For information on earlier versions and models, please visit support.atonometrics.com.  
The Mars™ unit has a single M12 user connection port. Use this M12 power and RS485 port to 
power your unit and record data via Modbus RTU over RS485. The Mars™ unit’s aluminum 
enclosure provides for various mounting options.