Keep an existing irrigation schedule from running through rain or low temperatures with the WR2RFC. The outdoor sensor sends local conditions wirelessly to an interface wired at your sprinkler controller. Adjust the rain and temperature thresholds at that interface rather than climbing to the sensor. This is the North American WR2-RFC combo, with both sensor and controller interface; your irrigation controller still sets watering times.
Key Features
Adjustable rain and freeze thresholds let you choose when watering pauses.
Signal and battery indicators help with placement and maintenance.
Mounting bracket fits a rain gutter or flat vertical surface.
Quick Shut Off pauses an active cycle within approximately two minutes of a rain event.
Common Uses
Adding rain and low-temperature interruption to compatible residential or commercial irrigation.
Installing a sensor where running a cable back to the controller would be difficult.
Technical Specifications
Manufacturer model: WR2-RFC; North American radio frequency: 916 MHz.
Controller application: compatible 24 VAC irrigation control circuits.
Rainfall set points: six settings from 1/8 to 1/2 inch (3–13 mm).
Temperature set points: 33°F, 37°F or 41°F.
Modes: programmed irrigation, suspend irrigation for 72 hours, or override sensor for 72 hours.
Wireless range: up to 700 feet line of sight; placement and obstructions affect reception.
Interface harness: 30 inches, #22 gauge.
Sensor battery: replaceable CR2032 lithium battery; manufacturer estimates four or more years under normal operating conditions.
Bracket plus fixed ball arm horizontal displacement: 5.5 inches.
Compatibility & Installation Notes
Disconnect controller power before wiring. Use the North American WR2 manual and the controller's instructions for the correct sensor-input or valve-common wiring. The interface is for 24 VAC circuits, not direct connection to 110 or 220/230 VAC.
Mount the sensor where it receives direct rainfall, clear of roof and tree cover and above sprinkler spray. Pair the units and check signal strength before final mounting. The 916 MHz North American version differs from the 868 MHz international model.
WR2RFC uses a selectable 72-hour suspension mode. WR2-48 is a separate model with a 48-hour irrigation hold feature. A rain/freeze sensor pauses irrigation; it does not winterize pipes or guarantee protection from freeze damage.
Frequently Asked Questions
Does WR2RFC replace my sprinkler timer?
No. It works with a compatible 24 VAC irrigation controller and interrupts watering when rain or temperature conditions trigger the sensor.
Is WR2RFC the same as WR2-48?
No. WR2RFC provides a selectable 72-hour suspension mode; WR2-48 replaces that mode with a 48-hour irrigation hold feature.
Can I adjust settings without reaching the outdoor sensor?
Yes. Set the rain and freeze thresholds at the wired controller interface. The interface also shows signal strength and battery status.
Does the 700-foot range apply through every obstruction?
No. The rating is for line-of-sight transmission. Confirm reception at the intended mounting location before securing the sensor.
Why Buy from Big Frog Supply?
Choose the WR2RFC when you want both local rain and freeze sensing with thresholds adjustable beside the controller. Its North American 916 MHz combo includes the sensor and interface, while the standard WR2's selectable 72-hour suspension suits buyers who do not need the separate WR2-48 hold feature.
Manufacturer model: WR2-RFC; North American radio frequency: 916 MHz.
Controller application: compatible 24 VAC irrigation control circuits.
Rainfall set points: six settings from 1/8 to 1/2 inch (3–13 mm).
Temperature set points: 33°F, 37°F or 41°F.
Modes: programmed irrigation, suspend irrigation for 72 hours, or override sensor for 72 hours.
Wireless range: up to 700 feet line of sight; placement and obstructions affect reception.
Interface harness: 30 inches, #22 gauge.
Sensor battery: replaceable CR2032 lithium battery; manufacturer estimates four or more years under normal operating conditions.
