Oregon Scientific Barometer & Weather Station Temperature & Humidity Sensor

The Oregon Scientific THGR810 thermometer and humidity sensor (96 x 60 x 20 mm) has 10 Channels and is compatible with the WMR80, WMR88, WMR90A , WMR100, WMR200 & LW302U . It allows weather station owners/users to expand the locations and information monitored. The THGR810 sensor monitors both temperature and humidity readings and features an on- board LCD screen.

RF frequency 433MHz
Compatible with Oregon Scientific wireless weather stations
10 Channels
Transmission range up to 100m (330ft) unobstructed
Outdoor temperature range -30° C (-22° F) to 60° C (140° F)
Wall mount or table stand
Requires 2x UM-4 (AAA) 1.5V batteries (not included)

For longer life and use in colder climates, the supplier recommends Lithium batteries. Standard Alkaline batteries contain significant amounts of water. Because of this they will freeze in low temperatures of approximately -12° C (10° F). Consumer grade Lithium batteries have a much lower threshold for temperature with an estimated freezing range of below -30° C (-22° F).