Rain Bird Wireless Rain & Freeze Sensor System — 1 Sensor + Controller Interface, Adjustable Rain and Freeze Shutdown

Rain Bird's wireless Rain and Freeze Sensor System automatically suspends irrigation when rainfall or low temperatures make watering unnecessary.

Designed to cut wasted water and protect landscapes, this kit pairs a single wireless sensor with a controller interface to stop cycles during rain or freezing conditions. The icon-driven control panel makes setup and adjustments straightforward, while the enhanced antenna array improves signal reliability across typical yard obstructions. Compatible with most 24VAC irrigation controllers, the system helps you tailor shutdown thresholds for both rainfall and low temperatures without running wires across the property.

How does this sensor stop irrigation when it rains?

The wireless rain function detects accumulated rainfall and sends a shutoff command to your controller when the pre-set amount is reached. You choose a trip point between 1/8 inch and 1/2 inch, so the system waits for only the rainfall depth you specify before suspending scheduled watering.

• Adjustable rainfall sensitivity from 1/8" to 1/2"
• Wireless communication to the controller interface—no trenching or wiring needed
• Immediate halt of scheduled irrigation once the threshold is met

Will it protect my plants from freezing temperatures?

Yes—the freeze sensor monitors ambient temperature and will disable irrigation below your chosen set point to prevent watering during freezing conditions. Set the low-temperature trigger between 33°F and 41°F to match local frost risk and plant needs.

• User-selectable freeze shutdown from 33°F to 41°F
• Prevents frozen-surface irrigation events that can damage plants and hardscapes
• Works automatically once the threshold is reached

Is this system easy to install and program?

The kit includes a controller interface with an intuitive icon-driven display that simplifies pairing and setting adjustments. Installation requires mounting the sensor and wiring the interface to your 24VAC controller; it is not compatible with Rain Bird ESP-SMT or ESP-SMTe smart controllers, so check compatibility first.

• Icon-led interface for quick programming and status checks
• Wireless sensor eliminates long communication wiring across the yard
• Compatible with many Rain Bird and competitor 24VAC controllers

How reliable is the wireless connection across a typical property?

Rain Bird built an enhanced antenna array into this system to improve signal strength and reduce dropouts caused by common obstructions. While range varies with site conditions, the improved antenna design helps maintain consistent communication across most residential and commercial landscapes.

• Enhanced antenna array for better signal penetration
• Designed to overcome many line-of-sight obstacles like trees and structures
• Wireless pairing process for secure, stable operation

Who is this for: Homeowners, groundskeepers, and commercial property managers who want a simple, wire-free way to reduce water use and avoid irrigation during rain or freezing temperatures. This kit suits existing 24VAC irrigation controllers that are not ESP-SMT or ESP-SMTe models, and it’s a practical choice for anyone seeking measurable water savings and automated protection for plants and landscapes.