Double Keys: Switch Button: You Can Switch Fahrenheit (F) or Celsius (C) by Pressing the Switch ButtonON/OFF Key: Press this Switch to Off the Meter When you don't need use it and Help Longer the Service Life Mini Humidity Meter: Specification: Temperature Range: -58F ~ 158F(-50C ~ 70C)Temperature Accuracy: 1FHumidity Range: 10% ~ 99%Humidity Accuracy: 30%~80%: 2%Refresh Rate: 10 seconds Application: Digital Humidity Temperature Meters are Widely Used in Families, School, Office, Baby's Room, Greenhouse, Basements, Cellars, Laboratory, Garden and etc. Attention: Ensure Accurate Temperature Measurement, Out of Sunlight Directly and Away From Any Heat Sources or VentsMake Sure the Display is Positioned Away From Moisure SourcesDo Not Clean Any Part of the Product With Benzene,Thinner or Other Solvent Chemicals.
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