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Hunter - WSS-SEN - Wireless Solar Sync Rain & Freeze Sensor

by Hunter
Save 5%
Original price $149.45
Current price $142.72


The Solar Sync ET sensor is an advanced weather sensor that calculates evapotranspiration (ET) and adjusts Hunter controllers daily based on local weather conditions. Solar Sync measures sunlight and temperature, and uses ET to determine the correct seasonal adjustment percentage value to send to the controller. The controller then uses its programmed run time and adjusts to Solar Syncs seasonal adjustment value to modify the actual irrigation run time for that day. In addition, the Solar Sync ET sensor integrates Hunters popular Rain-Clik and Freeze-Clik® sensors providing quick response in shutting down your irrigation system during rain and/or freezing conditions. The Solar Sync is compatible with most Hunter controllers and applicable to residences, businesses, and municipalities alike.


  • Solar Sync:
    • Adjusts run times daily 3 minutes before midnight using the last 3 days of ET (evapotranspiration) data
  • Quick Response:
    • Time to turn off irrigation system: approximately 2 to 5 minutes for Quick Response
    • Time to reset Quick Response: approximately 4 hours under dry, sunny conditions
    • Time to reset when fully wet: approximately 3 days under dry, sunny conditions
  • Switch rating (24 VAC): 3 A
  • Operating frequency: 433 MHz
  • Range is 800' line of sight from sensor to receiver
  • Multiple wireless receivers can be operated from a single wireless sensor
  • Approvals: UL, cUL, FCC, CE, RCM
  • Warranty period: 5 years


  • Maintenance-free design with integrated battery for wireless models
  • Adjustable vent ring allows for longer or shorter reset period
  • Rugged polycarbonate housing and metal extension arm
  • Includes Quick Response rain shutoff and freeze shutoff at 37 °F
  • Range is 800 line of sight from sensor to receiver
  • Multiple receivers can be operated from a single sensor
  • Includes gutter bracket and wall mount
  • Compatible with Hunter X-Core, Pro-C, I-Core, ICC2 and Centralus, ACC, IMMS central installations, and ACC2 controllers
  • Warranty period: 5 years (wired models), 10 years (wireless sensor)


  • Maximum distance sensor to module: 800 ft. line of sight
  • Switch rating 24 VAC, 3 A
  • Operating frequency: 433 MHz


  • FCC, CE





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