Home Smart Parts OH-31 HT Bluetooth Temperature & Humidity Sensor

OH-31 HT Bluetooth Temperature & Humidity Sensor

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Here is another smart temperature and humidity sensor that lets you monitor readings on your smartphone. The OH-31 HT Bluetooth Temperature & Humidity Sensor has 20 days of on-board memory. Its app can read from up to 7 sensors. The temperature range is from 32 to 140 degrees.

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This sensor is compatible with iOS 10+. You can get it ofr under $50 at this time.