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Rain Sensor Turns off Automatic Watering Timers Automatically
Claber 90915 Rain Sensor for Automatic Watering Timers
Claber 90915 Rain Sensor for Automatic Watering Timers
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Rain Sensor Connection Diagram
Claber 90915 Rain Sensor for Automatic Watering Timers
Item# 3107RS
Price: Normally $30.99 
Hot Deal $29.76
Free shipping on orders over $175 - See Details


  • To be used with Aquadue Duplo Water Timer Only (#3107)
  • Automatic timer shut-off
  • Accurate rain measurement

Essential Info

Avoid unnecessary wastage of water by turning off sprinklers when raining. The system will shut down when the internal flow reaches a total level of 2 oz. Programming will resume when the water evaporates. To connect, simply remove the front panel of the Duplo water timer by pressing the 2 side buttons and slide the connector onto the far left prongs. Supplied with a stainless steel wall bracket, install the sensor in a clear area up to a distance of 6’ from water timer without any type of vegetation coverage and away from sprinklers. It is important to keep the orange over in place to keep out leaves and/or impurities that could impair operation. The unit is designed to operate with the #3107 Duplo 2-line water timer only and is sold separately.


What's Included

  • Rain Sensor
  • Stainless steel wall bracket
  • 6.5' of cable
  • Specifications


    Manufacturer Product No.:90915
    Dimensions:10" x 4" x 4"
    Warranty:2 years, limited

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Claber Inc, Tel: (800) 930-4566


    Rain Sensor Connection Diagram       
    Rain Sensor Connection Diagram       


    6 Ratings
    5 star: 50%  (3)
    4 star: 17%  (1)
    3 star: 33%  (2)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (6 customer ratings)
    Share your thoughts with other customers
    AL -- staten island, NY   8/26/2011
    This sensor is amazing! Does not allow the Water Timer to operate after or during a rain storm. Saves on watering cost. A must to have along with the timer. Both items worth the price.
    Grass Grower -- New York State   10/17/2010
    The thing is that the duplo water timer only checks in with the rain sensor before it begins its watering cycle. Once the cycle starts the rain sensor has no effect until the next cycle. I won't stop the water flow in the middle of a cycle. Also, I've noticed that it takes longer than I would like for the water to evaporate from the unit and restart the timer. Seems to be 2-3 days after a rainfall, depending on the humidity and sun exposure.
    ROBERT -- sanford, NC   5/16/2009
    This is no more than a well encased magnetic switch with a magnet in a float to activate the switch. Unfortunately, if the valve is "pulse controlled" as those in the timers I have are, then this sensor might not allow the pulse which turns off the water to actuate. An example of this is that I installed the sensor near the sprinkler in the hope that if there was some rain prior to the sprinkler coming on the sprinkler would shut off when the soaking was complete. However the magnetic switch opened when the water reached the proper level and the sprinkler continued to water the lawn until I noticed that it hadn't turned off several hours after it was supposed to(no saving water that time). If your timer will shut off the water when the sensor circuit opens then this will work as expected. If a polarity change in your timer opens and closes the valve then this device could be modified with a diode to perform as expected. However if a pulse of the same polarity opens and closes the valve this is not what you want.
    RICHARD -- parkside,   9/10/2005
    works fine

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