Ambient Weather WH31P Water Proof Probe Temperature Sensor for WS-1550-IP, WS-1965, WS-2000, WS-2902B, WS-2902C, WS-3000, WS-5000 and ObserverIP Series Weather Station

Availability: In stock
  • Buy 2 for $25.99 each and save 5%
  • Buy 4 for $24.99 each and save 9%
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Note: TheWH31P sensor is not a stand-alone device and requires a WS-2902B (or greater revision), WS-1965, WS-2000 or WS-5000 weather station to view and upload the data to our cloud hosting service at

Accessory for the ObserverIP, WS-1965, WS-2000, WS-2902B, WS-2902C, WS-3000, WS-3000-X3, WS-3000-X5, WS-0265 and WS-5000 (total of 8 sensors).

The remote sensor includes a 10-foot waterproof probe, ideal for measuring any wet temperature medium, including water, soil, refrigerators, and freezers. This sensor has an IPX4 water resistance rating.

The probed sensor has a low thermal mass and responds quickly to temperature changes.



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Weather Features

  • Temperature

Additional Features

  • 10' water-proof probed thermometer
  • LCD display
  • Suspension eye for easy mounting
  • Outdoor temperature range: lithium batteries: -40°F to 140°F
  • Outdoor temperature range: non-lithium batteries: -4°F to 140°F
  • Dip switch selectable remote channels
  • Monitors temperature in up to 8 remote locations
  • Transmission range of up to 300 feet line of sight (100 feet under most conditions)
  • Frequency: 915 MHz
  • Update Rate: 60 seconds
  • Sensor Dimensions (LxHxW): 4.75 x 1.5 x 0.6 in
  • Power requirements:
  • Remote Sensor - 2 x AA (not included)

Visit our support page for FAQ and more.