Specifications: 1. LCD display 2. 41mm diameter of the opening (small measurement error) 3. Profile diameter 45.2 (the measurement is subject to a small error) 4. Weight: 25g (without battery) 5. the display of humidity 6.10% to 99% Humidity measurement range 7. the resolution of the humidity display is 1%. 8 Humidity sampling period 10 seconds (1 minute) 9. the measurement accuracy of humidity is 5%. 10 Rated voltage DC1.5v (1 AG13 button cell) 11 Temperature measuring range -50 to 70 12. the accuracy of temperature measurement is 1 degrees (at room temperature) Properties: The small and portable temperature and humidity meter is suitable for any scene. In addition, its beautiful and stylish look is also the beautiful room decoration. With the Digital Thermo-Hygrometer you always have an up-to-date view of the room climate and can therefore also use the humidifier according to your wishes to adjust the temperature and humidity of the room. Installation of the battery: Turn the product to the back; Slide the battery compartment lid in the direction of the arrow; Insert two LR44 button cell batteries into the battery compartment. Scope of delivery: 1*Mini Thermometer Hygrometer (Pengiriman berdasarkan kuantitas pesanan aktual) Have a great time shopping!