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Irritrol RFS1000 Wireless Rain/Freeze Sensor Plus

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Free Shipping on Orders over $149
Sale Price $81.98
Our Price $129.65
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Irritrol RFS1000 Wireless Rain/Freeze Sensor Plus

Taking water management to the next level, the proven Irritrol® RainSensor™ Series makes watering in the rain a mistake of the past. The reliable wireless and wired rain sensors conserve water by preventing irrigation during or after sufficient rainfall, while the wireless rain/freeze sensor also helps reduce vegetation damage and icing conditions when the temperature drops below a predetermined set point. With its compact design and host of convenient features, the RainSensor Series is the perfect complement to any standard controller.

Product Details

  • A - Spindle: Press down and hold to manually test transmitter operation.
  • B - Rainfall Adjustment Cap: Adjusts the Sensor/Transmitter to signal the receiver when the accumulated rainfall reaches 1/8" (3mm), 1/4" in. (6mm), 1/2" in. (12mm) or 3/4" in. (19mm).
  • C - Vent Ring: Adjust "dry-out" rate.
  • D - Universal Mounting Bracket with Quick-ClipTM: Simplifies installation on rain gutter, or roof eaves, fences, etc. Sensor/Transmitter adjusts easily to the vertical position.
  • E - Conduit Adapter: Alternative mounting option for conduit mount.
  • F - Antenna Wire: Straighten downward for maximum range.
Irritrol RFS1000 Wireless Rain/Freeze Sensor Plus

Product Details

  • Wireless models require less labor for the installer
  • Constant communication between transmitter & receiver assures that even after a controller power outage, the controller is continually updated with the sensor's "wet" or "dry" status
  • Versatile mounting options requires no special tools - Quick-Clip gutter bracket and 1/2" conduit adapter included
  • Signal strength indicator ensures correct installation, communication link and signal integrity (wireless models)
  • Smart Bypass for easy system override allows for temporary deactivation while automatically resetting on next activation (wireless models)
  • Fully adjustable shutoff points from From 1/8" to 3/4" (3-19mm) of accumulated rainfall
  • Dry-out rate adjustment for reset delay allows for setting the ideal dryout time
  • Patented Wireless Technology unsurpassed by the competition
  • Receiver power: 22-28 VAC/VDC, 100mA (to be used with Class 2, UL-approved ( transformer)
  • Load rating: normally open or normally closed
  • UL Listed, FCC, CE, IC
  • Sensor type: industry-standard hygroscopic discs
  • Rain sensitivity: adjustable nominal 1/8" to 3/4" (3-19mm)
  • Operating temperature: -20 degrees F to 120 degrees F (-29 degrees C to 49 degrees C)
  • Housing material: UV-resistant engineered polymer
  • Wireless only features: Transmission range: over 300 feet (91,4m) line of sight, Battery: Two CR2032 3V cells, 5-year life (typical)


  • Transmitter: Height: 1-1/2" (3,8cm), Width: 1-3/4" (4,4cm), Depth: 3-3/4"(9,5cm)
  • Receiver: Height: 1-1/2" (3,8cm), Width: 1" (2,5cm), Depth: 3" (7,6mm)
Product Tag:
Best Value
Product Type:
Rain and Freeze Sensor
Sensor Material:
Rain and Freeze Sensor
Sensor Connection:
Average Rating:
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5.0 / 5.0
1 Review
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Irritrol RFS1000 Wireless Rain/Freeze Se
It rained the day after I installed it, when the rain got up to the level I set, it turned the sprinkler system off. It will do the same thing when it gets below freezing. It turns itself back on automatically. Very convenient! We are in severe drought conditions and it helps save water. The wireless range is very strong also.
May 27, 2014
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Browse 11 questions Browse 11 questions and 22 answers
Why did you choose this?
SprinklerWarehouse.com Store
you have what I needed
Larry Z on Aug 5, 2017
you have what I needed
Larry Z on Aug 5, 2017
Does the $70.24 price include both the sensor and receiver?
s. B on Aug 1, 2015
How do you replace the Battery?
A shopper on Mar 26, 2017
if I buy one to replace the one I have how does it mate up to the existing system, is there an address on it?
A shopper on Aug 23, 2012
BEST ANSWER: It's just a couple of wires. You should read the documentation, though, to make sure the sensor operation is compatible with what your controller needs from the Sensor. Mine appears to be compatible, but it doesn't shut the controller off even when the indicator light suggests it should.
I am trying to connect this sensor to the CyberRain control box. How can this be done without directly connecting to DC wire?
A shopper on May 9, 2013
BEST ANSWER: There are two parts to this unit. The receiver connects to the control box and should be mounted next to the control box. The other is the wireless rain sensor that should be placed in a position away from the control box and in a position to be able to detect rain & or freezing weather.

There should be wiring diagrams in the box - there were with mine - to show you how to connect the receiver to the control box.
How frequently do you need to change the batteries?
A shopper on Aug 2, 2011
BEST ANSWER: I have yet to change the batter, but plan on a yearly maintenance cycle of replacement at the first of the year.
Why is red light blinking ?
Big Rich on Sep 2, 2015
BEST ANSWER: Because you pressed the bypass button, press it again and the light will stop blinking, if the light stays on red the wireless sensor must be wet , until it drys out then the light goes away
my controller is in the basement. If I put it on the gutter above it, will I get a strong enough signal? Line of sight says 300 feet.
jeff i on Jun 2, 2012
BEST ANSWER: My controller and rain/freeze sensor is in a basement and mounted on a concrete basement wall about 5' below ground. My sensor is in the ground about 28' away horizontally. I use it only as a rain sensor and take it in when I drain the system for the winter. It has worked fine.
can I purchase a repair kit for rain gage?
john l on Jul 27, 2017