Features: The JD861 Temperature Humidity Meter delivers precise environmental monitoring with its high accuracy sensors and auto calibration technology, making it ideal for professional temperature and humidity measurement. Featuring a large LCD screen with clear visibility in low light and strong ABS construction, this hygrometer thermometers ensures long lasting performances across demanding conditions. Perfect for homeowners seeking indoor climate control, laboratory technicians requiring stable data, and outdoor enthusiasts monitoring campsite environments. Optimize comfort in living rooms, maintain equipment stability in workshops, or secure safety compliance at industrial site – this environmental monitor adapts to diverse spaces effortlessly. Its compact, portable design coupled with automatic calibration functionality allows seamless change between home, office, and field applications while maintaining measurement consistency. Specifications: Component : abs Size: about 4x6.5x19cm/1.57x2.56x7.48inch Battery: 6F22 9V temperature: ranges: -30°C~100°C (-22°F~212°F) Accuracy: ±0.5°C (25°C, 20%~80%) ±0.9°F (77°F, 20%~80%) ±0.8°C/±1.5°F (other ranges) resolution: 0.1°C (0.1°F). relative humidity: ranges: 0~100% Accuracy: ±2% (25°C/77°F, 20%~80%) Package Includes: 1xDigital Hygrometer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.