2 in 1 Thermometer and HygrometerBuilt in 1.5m Sensor Wire, Accurately Tells you Indoor Temperature/Humidity and Outdoor Temperature, Also with Clock Function, Ideal for the Management of Air Conditioning, Office, Hotel, Room, Hospital, Laboratory, and Breeding Industry Measure Range Temperature: 0 to 50 Celsius degree (32 to 122 Fahrenheit); Temperature Measurement Accuracy: ± 1 Celsius degree (2 Fahrenheit); Humidity: 10% to 99%; Humidity Measurement Accuracy: ± 5% Visualized Large LCD Display Large LCD Display Screen Provides You a Clearer and Wider Field of View, Displays Records All the Time Back Stand and Hanging Hole at Back Side Compact Design, Can be Placed on Flat or Hanging on the Wall, Easy and Convenience to Use 5 Buttons for Easily Control With MODE, ADJ, MAX/MIN, °C/°F Units Switch, RESET Keys, Varies Function Meets Your Different Needs, Remove the Battery Cover, Insert 1 AAA Battery (Included) and Read Easy-set Calibration Instructions (All Products Come with 18 Months