Clear Large-screen & Battery Display: Real-time temperature and humidity detection, according to the temperature changes to obtain the external environment Cross-protocol Scene Linkage: Support smart life app with custom scene settings, can be linked with some WiFi devices With temperature and humidity sensor Detect luminous intensity Push notification to mobile phone Free IOS & Android APP Specifications: Battery: AA battery x 2 (Not Included) Temperature detect range: -20~80 Humidity detection range: 0%~100% Luminous intensity detect range: 0Lux~157000Lux Working temperature: -20~80 (-4F~176F) Working humidity: 0%~100% Size: 84mm x 55mm x 32mm Package included: 1 x Sensor 1 x English Manual Other items not included