Features: Equipped with high-precisions temperature and humidity sensors, it can monitor the environmental temperature (-10 to 55 ℃) and humidity (0% to 99%) in real time, ensuring the accuracy of data. Real-time perception of temperature and humidity changes and real-time report to your phones. View history record in App for smart controls for your house temperature and humidity. Designed with low voltages monitoring reminder function in App for real-time power supply for your sensors. Widely used in various places and easily sticks it to the wall with the sticker for simple installation,light and compact. Added with temperature compensation techniques with intelligent scene linkage to your air conditioning and humidifier,offering your house with the most comfortable temperature and humidity to enjoy intelligent life. Specifications: Component: ABS Temperature measurement accuracy: ±0.6℃ Humidity measurement accuracy: ±6% Operating voltages: 3V Standby current: ≤5uA Battery type: CR2450 Standby time: ≥6 months Working temperature: -10~55℃ Working humidity: 0%～99% Wireless distance: ≥100 meters (open distance) Product size: about 40x13mm/1.57x0.51inch Package Includes: 1pc Temperature And Humidity sensors note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.