Welcome to our shop Measurable temperature range: -50~70 degrees Celsius, temperature measurement accuracy: 1.0 degree Celsius. Measurable humidity range: 10%~99% RH, humidity measurement accuracy: 5% relative humidity, measured every 10 seconds. Product size: 44*44*15mm. Battery: one LR44 button battery. The small handheld temperature and humidity meter is suitable for any scene. Humidity Temperature Monitor: This handheld hygrometer thermometer measures indoor humidity and temperature, helping you know the indoor air condition. Wide Range of Applications: Thlevel mini digital hygrometer is widely used in living room, greenhouse, instrument room, basement, cellar, warehouse, attic, nursery, mudroom. Product Features: 1. Mini thermo-hygrometer, compact size, exquisite design, easy to carry, suitable for various scenes. 2. With a digital thermometer and hygrometer, you can always know the latest changes in the indoor climate. Product Specifications: - Measurable temperature range: -50~70 degrees Celsius - Temperature measurement accuracy: 1.0 degree Celsius - Relative humidity test range: 10%~99% RH - Accuracy of humidity measurement: 5% RH (at room temperature 25 degrees Celsius) - Sampling cycle: 10 seconds - Display resolution: 0.1 - Dimensions: 44*44*15mm - Display: LCD - Battery: 1.5V LR44 button battery x 1 - Material: PVC plastic Note: Since the size is measured manually, there may be a 1-3cm error in measurement. Due to different monitors, there may be some difference between the real product and the picture, please understand. Package includes: 3x digital hygrometer thermometer. Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life.