Rain Bird wireless rain-and-freeze sensor WR2RFC48 — 48-hour hold, battery-powered with icon display

The Rain Bird WR2RFC48 is a wireless rain-and-freeze irrigation sensor that suspends watering for 48 hours after rain and prevents run cycles when freezing conditions approach.

The WR2 Rain/Freeze Sensor Combo by Rain Bird is a compact, battery-powered device designed to reduce unnecessary irrigation by detecting precipitation and low temperatures. It pairs wirelessly with compatible controllers to automatically interrupt scheduled watering events, helping conserve water and support compliance with municipal restrictions. The unit uses a simple icon-driven display for quick setup and delivers accurate, automatic shutdowns without manual intervention.

How does the sensor stop irrigation after rainfall?

When the WR2 detects precipitation, it triggers a 48-hour hold that temporarily pauses watering schedules. That hold period gives soil time to absorb moisture and reduces redundant irrigation cycles caused by automatic timers.

• Automatic wireless signal to your controller to suspend programs
• Fixed 48-hour post-rain lockout to avoid overwatering
• Works without rewiring—mount the sensor within signal range

What prevents watering during freezing temperatures?

The freeze sensor component monitors ambient temperature and inhibits irrigation once the air temperature drops below the preset threshold. This helps avoid running water when plants and surfaces are vulnerable to frost damage and when water can freeze on hardscapes.

• Automatic shutdown below the factory set freeze point
• Reduces ice formation risks on driveways and walkways
• Restores normal scheduling when temperatures rise above the threshold

How much water and effort can this unit save?

By pausing irrigation for wet and freezing conditions, the WR2 can cut unnecessary watering and lower water consumption—Rain Bird cites potential savings up to 35%. The wireless design and icon-driven interface simplify installation and operation, so you spend less time configuring settings.

• Potential water savings up to 35% by eliminating redundant runs
• Icon-driven setup reduces programming time for homeowners and pros
• Battery-powered, no controller wiring required for many installations

Which controllers and situations does this sensor suit best?

The WR2RFC48 is built to integrate with a wide range of Rain Bird and third-party controllers that accept wireless sensor inputs. It’s a practical choice for residential and light commercial irrigation where local water-use rules apply or where freezing events could create hazards.

• Compatible with wireless-capable Irrigation controllers from Rain Bird and others
• Ideal for yards, HOA-managed landscapes, and commercial sites subject to ordinances
• Battery operation makes it suitable for retrofits where wiring is impractical

Who is this for: The Rain Bird WR2RFC48 fits homeowners, landscape contractors, and property managers who want automatic protection against overwatering after rain and against watering during freezing conditions. It’s especially useful where municipal watering restrictions exist or where conserving water and avoiding ice hazards are priorities. If you need an easy-to-install, wireless sensor with a clear icon display and a reliable 48-hour rain hold, the WR2 offers a straightforward way to tighten irrigation control and reduce wasted water.