Features Measuring device: With the digital display measuring device, indoor and outdoor temperature and humidity can be read conveniently. It includes a built-in Swiss-made sensor that can give you more accurate temperature and humidity readings in both Celsius and Fahrenheit. Real-time data: Provide accurate, real-time temperature and humidity data to perceive the environment and improve air comfort. You can monitor the digital hygrometer from anywhere in your home at any time. High Accuracy: The thermometer and hygrometer have high accuracy and wide measurement range, with strong practicability. Built-in 3V 210mAh button battery, easy to use, don't worry about power problems. ABS Shell: The thermometer and hygrometer is made of excellent ABS plastic, with high hardness and wear resistance, and can be used in outdoor. Put the thermometer anywhere. It is very useful for wine cellars, greenhouses, kitchens, etc. Digital Display: The bold number display makes it easier to use your hygrometer to read temperature data throughout the day. Data can be read out in real time. Specification: Item Type: Temperature Humidity Meter Temperature measurement range: -10-70℃ Temperature Measurement Accuracy: ±1℃ Temperature resolution: 0.1℃ Humidity measurement range: 20%RH-90%RH Humidity measurement accuracy: ±5% RH Moisture Resolution: 1% Battery: 1 x 3V 210mAh Lithium Manganese Button Battery (Built-in Battery) Size: Approx. 80 x 48 x 9mm/3.1 x 1.9 x 0.4inch Package List: 1 x Temperature Humidity Meter 1 x accessory 1 * Sticker Package List 1 x Temperature Humidity Meter 1 x Accessory 1 x Sticker