Feature: 1. Applicable for home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places equipped with air condition, etc. 2. This portable hygrometer thermometer Measures Indoor humidity and temperature in time, help to adjust the humidifier, dehumidifier settings and humidistats, great for monitoring family's living conditions and health by preventing colds, dry skin, asthma, mold. 3. Quick response that measures every 10 seconds to provide updated and accurate readings, wide measuring range that measures temperature from ‑50℃ to 70℃, measures humidity from 10% to 90%. 4. Mini round digital humidity thermometer allows you to easily know the environment temperature and humidity. 5. Small size, sturdy and portable enough for saving space and carrying around. Specification: Item Type: Thermometer Hygrometer Material: ABS Color: As shown in the picture Size: Approx. 4.5x4.5x1.5cm / 1.8x1.8x0.6in Weight: Approx.40g/1.4oz Battery: 1 x Button Cell 1.5V 160MAH(Battery Not Included) Humidity Measurement Range: 10%~90% Humidity Display Resolution: 1% Humidity Sampling Cycle: 10 seconds (1 minute) Humidity Measurement Accuracy: ±5% Temperature Measurement Range: -50~70℃ Temperature Measurement Accuracy: ±1 ℃ (under normal temperature) Application: Baby room, reptile incubator, home, office, etc. . Package List: 2 x Thermometer Hygrometer(Battery Not Included) Note: 1. Please allow 1‑2cm 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.