Turn your sprinklers off automatically when it rains!
Sensor For Your Automatic
Underground Sprinkler System
A rain/freeze sensor is a little gauge that
attaches to your eaves trough. Your rain/freeze sensor can
determine when you've got rain or freezing temperatures and send a
signal to your timer to skip the next watering cycle.
The sensor can be adjusted to react to anything
between 1/8" to 1" of moisture.