Brand: Hunter Industries SKU: RFC Product Overview The Hunter RFC is a wired Rain/Freeze-Clik sensor designed to interrupt automatic irrigation when rain begins or when outdoor temperature reaches freezing-risk conditions. Quick Response technology can stop irrigation within the first few minutes of rainfall rather than waiting for a preset amount of water to accumulate. The integrated freeze sensor is designed to keep the system from operating at or below approximately 37°F. The sensor connects to a compatible irrigation controller sensor input or approved common-wire circuit using the attached 25-foot cable. Once rainfall has ended, the moisture-responsive components dry according to sunlight, wind, humidity, and the vent-ring setting, allowing automatic irrigation to resume. The freeze function is preset and does not require adjustment. RFC is the wired configuration and does not use a wireless receiver, radio frequency, or battery. It should be mounted where it receives representative natural rainfall, away from sprinkler spray, and where the freeze-sensing portion is protected from direct sunlight while still receiving free outdoor airflow. Key Features Combined wired rain and freeze sensor Quick Response rainfall shutoff Freeze shutoff at or below approximately 37°F Self-adjusting rainfall response Adjustable vent ring for drying-rate control Includes approximately 25 feet of attached wire Supports compatible normally closed sensor circuits 24 VAC switch rating up to 3 amps No battery or wireless receiver required Common Uses Preventing irrigation during rainfall Reducing sprinkler operation near freezing conditions Residential and commercial wired controller systems Replacing a matching wired Rain/Freeze-Clik sensor Compatibility and Installation Notes Confirm the controller supports a wired rain/freeze sensor or approved common-wire interruption method. Mount where the sensor receives unobstructed rainfall but not sprinkler spray. Position the freeze sensor out of direct sunlight with free outdoor air circulation. Follow Hunter wire-gauge requirements if extending the included cable. This sensor is intended for 24 VAC irrigation circuits, not 120 or 240 VAC wiring. A freeze sensor supplements, but does not replace, visual inspection and responsible winter irrigation management. Frequently Asked Questions Is RFC wireless? No. RFC is the wired Rain/Freeze-Clik configuration and includes an attached controller cable. Can the freeze temperature be adjusted? No. The freeze function is preset to interrupt irrigation at or below approximately 37°F. How quickly does it stop irrigation when rain starts? Quick Response technology is designed to interrupt irrigation within the first few minutes of rainfall. Why Buy from Big Frog Supply? Big Frog Supply carries Hunter wired and wireless weather sensors, irrigation controllers, sensor accessories, wiring components, and system repair parts.
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