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Hydro-Rain Plastic Rain Sensor | HRC-100-RS-RF
Hydro-Rain HRC Controller
Our Price: $87.63
Sale Price: $50.98
You save $36.65!

Product Code: HRC-100-RS-RF

Description Reviews

Hydro-Rain HRC-100-RS-RF HRC 100 Wireless Rain Sensor w/ Receiver

Hydro-Rain’s HRC 100 wireless rain or rain sensor saves water by automatically suspending irrigation watering cycles when it rains 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.

Features & Benefits

  • Adjustable Moisture Activation
    —1/8", 1/4", 1/2", 3/4", 1" rainfall settings for variable climates.
  • Hygroscopic Discs
    —Absorb water to activate rain switch.
  • Universal
    —For use with most brands of 24 Volt sprinkler timers.
  • Quick Rain Gutter Mount
    —No tools required for mounting the sensor to a rain gutter.
  • Constant Communication
    —Every 30 seconds, (HRC 300/390 models), a signal between the transmitter and receiver for accurate timed water metering. All other timers transmit updated signal every 15 minutes.
  • Transmission Range
    —Over 300 feet (91.4 m) line of sight.
  • Manual Bypass Control
    —Allows for deactivation during sprinkler system maintenance.
  • Dry Vent
    —Allows air to be circulated or dampened for fast or slow dry, effectively reducing time for the next watering cycle.


  • Station Type:
    Industry-standard hygroscopic discs
  • Rain Sensitivity:
    Adjustable nominal 1/8" to 1" (3-25mm)
  • Operating Temperature:
    14° F~140° F ( -10° C~60° C)
  • Housing Material:
    UV-resistant engineered polymer
  • Receiver Power:
    22-28 VAC
  • Transmitter Power:
    Two CR2032 3V cell, 5-year life (typical use)


  • Transmitter:
    • Height: 4" (10,1 cm)
    • Length: 3.15" (8,0 cm)
  • Receiver:
    • Height: 3.75" (9,5 cm)
    • Length: 1.1" (2,7 cm)


  • AC Supply:
  • Relay Contacts Output:
    Normal Open and Normal Close 3A@24VAC
  • UL Listed, FCC, CE

Manuals and Literature

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