Welcome to the store! Product temperature range: 0 to 50 ℃. Temperature measurement accuracy: 1.0. Humidity range: 10% - 99%. Humidity measurement accuracy: 5%. Sampling period: 10 seconds. Display resolution: 0.1. Size: 45 x 15 (mm). Power: 0.15MW under operating conditions. Battery: 1 * 1.5V button battery AG13/LR44. Package includes: 2 digital hygrometers. 1. Measurement Range: Temperature range: -20 ℃ to 70 ℃; Temperature deviation: 1 C. Humidity range: 20%~90% RH; Humidity deviation: 5% RH. 2. Mini and Simple Design: Thanks to its mini shell and round shape, the device can be placed in any discreet location. It boasts the simplest appearance with highly practical functions. With a circular digital humidity thermometer, you can easily determine ambient temperature and humidity. Small and lightweight, it saves space and is highly portable. 3. Widely Used: You can use it at home, in the office, car, school, hotel, laboratory, kindergarten, aquaculture, instrument workshop, library, factory, greenhouse, basement, garage, garden shed, 3D printer silk box, and places with air conditioning. 4. Embedded Thermometer: Helps measure indoor humidity and temperature in real-time, allowing you to adjust humidifier, dehumidifier, and air humidifier settings. Monitor family living conditions and health by preventing issues like cold, dry skin, asthma, and mold. Your satisfaction is our highest priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!