3
Wireless Rain-Clik Features
To prevent water waste, built-in Quick Response
®
 
Technology instantly shuts down irrigation as soon  
as it starts raining.
Key Benets
1.  Quick Response: Innovative technology that turns  
o the irrigation system immediately rather than 
aer it has accumulated a xed amount of rain. No 
calibration is required.
2.  Maintenance-Free Design: Provides trouble-free 
operation for at least 5 years. There are no batteries  
to replace. 
3.  Wireless Operation Up to 800' (243 m): No wires  
are required between the rain sensor and controller. 
4.  Wireless Rain-Clik Sensor (WR-CLIK): Acts as a switch 
to deactivate automatic watering of your irrigation 
controller when it rains. Once rain has stopped and the 
sensor has dried out, automatic irrigation will resume.
5.  Wireless Rain/Freeze-Clik Sensor (WRF-CLIK): 
The Wireless Rain/Freeze-Clik includes a freeze 
sensor that is designed to keep the irrigation 
system from operating when temperatures drop to 
37˚F (3˚C) or below. When temperatures rise above 
this temperature, the sensor will enable automatic 
watering.
6.  Automatic Synchronization: The Wireless Rain-Clik 
transmitter will send wireless signals every hour to 
the receiver to ensure that the sensor and receiver are 
continuously synchronized.
7.  Lost Communication/Battery Status Indication: The 
Sensor Bypass LED will ash RED if the receiver has not 
received a signal from the transmitter. This can indicate 
a low or dead battery.