WR2 Series Wireless Rain/Freeze Sensor by Rain Bird


The WR2 Series Wireless Rain/Freeze Sensor by Rain Bird is a must-have for any Rain Bird Irrigation Controller-based systems. It builds upon many important features and adds wireless capabilities with stronger signal reception and an unparalleled setup ease.

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  • Wireless rain sensor shuts off irrigation when it rains
  • Freeze sensor shuts off irrigation when temperature drops below set point
  • Saves up to 35% on water usage
  • Intuitive interface for easy programming
  • Enhanced antenna array provides superior signal reliability that overcomes most line-of-sight obstructions
  • Simple battery replacement requiring no tools and no need to disassemble sensor
  • Easy to install self-leveling sensor bracket mounts to flat surfaces or rain gutters
  • Suitable for use with Rain Bird and competitor 24VAC irrigation controllers

NOTE: Not compatible with Rain Bird ESP-SMT, ESP-SMTe, SST600s or SST1200s smart controllers



  • Adjustable rainfall settings from 1/8'' – 1/2'' (3 – 13 mm).
  • Adjustable low temperature settings from 0.5° – 5°C (33°F – 41°F).
  • Three irrigation modes to select: Programmed, Suspend Irrigation for 72 hours, Override sensor for 72 hours.
  • ''Quick Shut Off'' suspends active irrigation cycle within approximately two minutes.
  • High-grade, UV resistant polymer units resist harmful environmental effects.


  • Application: suitable for use with 24 VAC controllers (with or without pump start / master valve)
  • Electrical rating suitable for use with up to six 24VAC 7VA solenoids plus an additional master valve or pump start that does not exceed 53VA
  • Controller Interface Wire: 30'' (76 cm) length of #22 gauge (0.64 mm) UV resistant extension wire
  • FCC approved spread spectrum 2 way radio transceivers with FCC Class B approvals
  • Signal transmission distance of 700' (213 m)
  • Battery life: four or more years under normal operating conditions
  • 6 KV surge / lighting protection


  • cULus [US and Canada], ISED RSS-210 [Canada]


Controller Interface

  • Width: 3.1 in. (7.9 cm) 
  • Length: 6.8 in. (17.2 cm)
  • Depth: 1.7 in. (4,3 cm)
  • Distance between Mounting Holes: 6.25 in. (15.9 cm)


  • Sensor Length: 5.8 in. (14.7 cm)
  • Attachment Bracket Length: 4.6 in. (11.7 cm)
  • Distance between Mounting Holes: 4.25 in. (10.8 cm)
  • Horizontal displacement (bracket + fixed ball arm): 5.5 in. (14.0 cm)

WR2 Series - Brochure

PDF Brochure

WR2 Series - Technical Sheet

Technical Sheet PDF

WR2 Series - User Manual

User Manual PDF
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