Thirsty Light Help :: Drypoint Technology

The patent pending Thirsty Light® functions based on two major components: the Drypoint™ sensor at the tip of the probe and a Drypoint™ digital circuit housed in the pod. The Drypoint™ system measures the electrical resistance of the soil environment - the resistance being lower when moisture is present and more dissolved salts are in the moisture. The Drypoint™ circuit turns on once every second to measure the resistance, then interprets the results and takes the appropriate action, either emitting a blinking pattern or remaining dormant.