1Mini temperature humidity tester, made of highquality materials, has good durability and stability. 2It can measure indoor and outdoor temperature and humidity with high accuracy and small error. 3With date/time, /second display function, support 12/24 hour system switching. 4Support maximum and minimum temperature and humidity storage functions, and frost alarm function. 5Small size, easy to carry, suitable for homes, offices, factories, laboratories, research institutes, etc. Condition: 100% Brand New Item Type: Temperature Humidity Meter Material: Plastic Temperature Measurement Range: Indoor: 0-50 (32-120) Outdoor: -20-50 (4-120) Temperature Resolution: 0.1/ Temperature Accuracy: 1.0/ Battery: 1 x AAA Battery (Battery Not Included) 1 x Temperature Humidity Meter (Battery Not Included)1 x Data Line1 x Manual