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Features:
● Measure and display the indoor/outdoor temperature and indoor humidity
● Automatically memorize the Max./Min. values of the indoor/ outdoor temperature and indoor humidity
●Switch between℃ / ℉
● Clock function and alarming function
●12/24 hour mode switch
● 8 minutes snooze function
● Recovery function on the Max./Min. values

Technical parameters:
● Indoor temperature measuring range: -30℃～+50℃(-22℉～122℉)
● Outdoor temperature measuring range: -50℃～+70℃(-58℉～158℉)
● Indoor humidity measuring range: 20%～99% (Relative humidity)
● Resolution: Temperature:0.1℃; Humidity: 1% RH
● Power supply: one 7# alkaline battery
● Operation environment: Temperature:0℃～50℃; Humidity: 5%～85% RH