HRC 100 Wireless Rain/Freeze Sensor with Receiver

About this item Easy no tools required-rain gutter mount bracket is equipped with a tool free bolt system that is both quick and intuitive to install. Adjustable moisture activation-1/8″, 1/4″, 1/2″, 3/4″, 1″ rainfall settings for variable climates. All other timers transmit updated signal every 15 minutes. Hygroscopic discs-absorb water to activate rain switch. Universal-for use with most brands of 24 volt sprinkler timers. Reliable freeze sensor option-shuts off timer when temperature drops to 37 Degree, protecting vegetation from the effects of freezing water. Constant communication every 30 seconds, (HRC 300 390 models), a signal between the transmitter and receiver for accurate timed water metering.