Think of the Rain Tracker as cruise control for your wipers.  The Rain Tracker senses water hitting your windshield and runs the wipers at just the right speed.  You never have to reach for the knob to adjust for changing conditions.  Once you get used to this feature, you will never want to be without it.

The Rain Gage RG-10 senses water hitting its outside surface using beams infrared light. The RG-10 uses the same underlying principle used in millions of automotive rain sensing windshield wiper controls, most of which employ technology originally developed in our labs.  We took the technology that was designed to sense tiny amounts of water in the harsh automotive environment, made it a bit more rugged yet, and applied it to the RG-10.  The result is a general purpose rain sensor that may be configured for many applications.

The IRT-26 Infrared Transmittance Tester measures the 880 nM light transmittance of a sample material placed between its two probes.  It provides a single, simple reading of percentage transmittance, ranging from 0 to 100%, with a resolution of 0.1%.  The device is powered by an internal 9V battery, and shuts off automatically in about 4 minutes.  Normal lab operation will provide years of service between battery changes.