
WR-CLIK Wireless Rain-Clik
WRF-CLIK Wireless Rain/Freeze-Clik
®®
Owner’s Manual and Installation Instructions
Rain Sensor Shutoff for Automatic Irrigation Systems
S
ensor
RAIN LIK
TM
Wireless

TABLE OF CONTENTS
Features .............................................................................................................................. 3
Wireless Rain-Clik™ Components .......................................................................................... 4
Mounting the Receiver .........................................................................................................7
Adjustments and Operation ................................................................................................ 12
FCC Notice ........................................................................................................................ 16
FCC Declaration of Conformity ........................................................................................... 17
Industry of Canada Notice .................................................................................................. 18
CE & Australia Notice ........................................................................................................ 19

3
Wireless Rain-Clik™ sensors attach quickly and
easily to your controller. Wireless Rain-Clik™
features include:
• Quick Response™ unique technology that turns
off the irrigation system immediately – not after
it has accumulated a fixed amount of rain. No
calibration is required.
• Maintenance-free design provides trouble-free
operation for up to ten years. There are no
batteries to replace.
• Wireless operation up to 800 ft. (275m)
No wires are required between the rain sensor
and controller.
• Two models available:
Wireless Rain-Clik™ (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
FEATURES ..................................................................................
irrigation will resume.
Wireless Rain/Freeze-Clik (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 or below. When temperatures rise above
37˚F, the sensor will enable automatic watering.
• Automatic Synchronization – the Wireless
Rain-Clik™ transmitter will send wireless
signals every hour to the receiver to assure
that the sensor and receiver are continuously
synchronized.
• Lost Communication/Battery Status
Indication – the Sensor Bypass LED will flash
RED if the receiver has not received a signal
from the transmitter. This can indicate a low or
dead battery.

2
1
Vents
5
4
3
4
3. Radio Antenna – transmits a wireless signal
to the receiver up to 800 ft. (275m) It is
recommended that the antenna be oriented
vertically.
4. Mounting Arm –
metal extension arm
for mounting the
sensor.
5. Battery Status
LED – used to
determine the
status of the sealed
battery. Pushing
the manual test
spindle will flash
the LED light
indicating that
the battery is
good.
WIRELESS RAIN-CLIK™ COMPONENTS ...............................
Wireless Rain-Clik™ Transmitter
1. Manual Test Spindle – press and hold
the manual test spindle to confirm proper
operation of your transmitter.
2. Vent Ring – used to adjust the reset rate or
dry out time for the sensors. Opening the
vents will decrease the reset rate, while
closing the vents will increase the time it
takes for the discs to dry out.

White
Blue
Yellow to 24 VAC Power
Orange
SENSOR STATUS
SENSOR BYPASS
Press to bypass, press
again to re-enable
GREEN = Sensor is dry
RED = Sensor is wet
Red light indicates
sensor is bypassed
RAIN SENSOR BYPASS
Blue/White wires to normally
closed sensor terminals
Orange/White wires to normally
open sensor terminals
2
3
5
6
4
1
5
Wireless Rain-Clik™ Receiver
1. Bypass Button –
allows automatic or
manual watering when the sensor is active.
2. Sensor Bypass LED –
indicates when
sensor has been bypassed.
3. Sensor Status LED – used to indicate the
status of the sensor.
4. Radio Antenna – receives a wireless
signal from the transmitter up to 800 ft.
(275m) It is recommend that the antenna
be oriented vertically.
5. AC Power Wires – the two yellow wires
are attached to a 24 VAC source from
the controller.

7
6
6. Sensor Wires (See page 5) – the sensor
wires are attached to either the sensor
terminals in the controller or in-line with
the valve common wire.
Blue/White Wires (used for normally
closed sensor applications)
Blue/Orange Wires (used for normally
open sensor applications)
WIRELESS RAIN-CLIK™ COMPONENTS (continued) ..........
7. Rubber Cover – used to protect the
receiver when mounted in outdoor
locations.