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(More customer reviews)While rated for indoor use, the specified humidity range extends down only to 25% RH, which is far from suitable for heated dwellings in cold weather. Surprising, because most other Oregon humidity sensors are rated down to 5% RH. I purchased two of the BTHR968 sensors for evaluation as well as several other Oregon sensors. Once the RH drops below about 20%, the displayed reading on one of the BTHR968 takes a nosedive to about 8%.
The transmission frequency stability of both of the BTHR968 units is questionable. Although they both transmit data every 38 seconds (about 15 seconds apart) according to the LEDs on the units, the transmissions may not be received for over an hour at a time. Sometimes the data is received regularly from both units, sometimes from only one or the other, and sometimes from neither. Both of these are within 6 feet from the receiver. Transmissions from other Oregon sensors are received and only rarely miss a beat.
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The Baro-Hygrometer measures indoor temperature and humidity, and barometric pressure. The temperature operating range is 23F-122F with an accuracy resolution of 0.2F; this data is transmitted to the display unit every 38-seconds. The humidity operating range is 25% to 95%RH with an accuracy resolution of 1%. Updating of relative humidity information to the display unit occurs every 37-seconds. The barometric pressure operating range is 17.72inHg to 31.02inHg with an accuracy resolution of 0.03inHg. Data updating to the display unit of relative humidity occurs once an hour.
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