NEO Coolcam Tuya Smart Life Zigbee Temperature And Humidity Sensor Indoor Hygrometer Thermometer With LCD Display Support Alexa Home Work with Zigbee Hub Features: APP remote control, after processing by mobile phone APP and Hub, remote control can be realized. Clear large-screen & battery display, display the data on the screen. Push notification to mobile phone. With temperature and humidity sensor. Detect luminous intensity. Specifications: Battery: AA battery * 2pcs (not included) Temperature and humidity chip: SHT31 Temperature detect range: -20℃～ 80 ℃  Humidity detect range: 0%～100%  Luminous intensity detect range: 0Lux～157000Lux  Working temperature: -10℃～ 60℃ (14°F～140°F)  Working humidity: 0% ～ 100%  Standby current: 60.5uA Network protocol: Zigbee 3.0, IEEE 802.15.4 WI-FI distance: 40M There is a certain error, temperature (±0.5), humidity (±5%) The current ambient temperature value is judged once every 3S. Confirmation interval is 3S. When the temperature value changes more than 2 degrees, the current temperature value is updated and displayed The current environmental humidity value is judged once every 3S. Confirmation interval is 3S. When the humidity value changes more than 3%, the current humidity value will be updated and displayed Package Information: Package Size: Approx. 9.8 * 8.8 * 5.3cm / 3.9 * 3.5 * 2.1in Package Weight: Approx. 128g / 4.5oz               Package List: 1 * Smart Zigbee Temperature and Humidity Sensor