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Hydro-rain's HRC 100 wireless rain or rain/freeze Sensor saves water by automatically suspending irrigation watering cycles when it rains or freezes or both!
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.
