Instructions / Assembly
02
TABLE OF CONTENTS
Rain Sensor Components 1
Introduction 2
Features 2
Installation 3
Mounting the Rain Sensor 7
Adjustments and Operation 8
Specications 9
Troubleshooting 9
FCC Declaration of Conformity 10
Warranty and FCC Notice 11
INTRODUCTION
Thank you for selecting a K-Rain
®
Rain Sensor. This sensor will turn your irrigation controller
into an expert water manager by efciently suspending watering during rain and/or freeze
periods. After a set amount of rain has fallen and/or freezing temperatures exist (for models
with freeze sensor), the sensor will trigger the controller to suspend watering. The freeze sensor
option interrupts your sprinklers and reduces the hazards of standing water freezing on your
driveway, sidewalks, and patios when temperatures drop below 37°F [3°C]. Once the rain sensor
has dried sufciently, the sensor allows normal sprinkler operation. Works with most new and
existing sprinkler systems. This rain sensor will NOT work with open circuit timers.
WARNING! These sensors are designed to operate with 24 V AC power only. Connecting
any of these rain sensors to 120 or 240V AC power may result in severe equipment damage.
FEATURES
• Weather resistant. Engineered with impact modied, UV resistant polymer for outdoor exposure.
• Maintenance free. No batteries to replace.
• Unlike other Rain Sensors in the market, model 3208-WRFS (K-Rain wireless
rain-freeze sensor) can be paired with multiple K-Rain Pro EX 2.0 Wi enabled
controllers within range, providing additional value for the end user.
• 2 in 1 mounting. Provides exible installation with standard at and gutter mounting.
• Models 3208-WRFS and 3208-HRFS include a freeze sensor that prevents the
irrigation system from starting when temperatures drop to 37°F or below.
• Quick Installation. The Wireless Rain-Freeze Sensor 3208-WRFS provides the
advantage of extremely quick installation and eliminates unsightly wires.