["WiFi Tuya Temperature Humidity Sensor for Smart Home App Alert Monitoring Indoor Hygrometer Thermometer Linkage\n\nFeatures:\nWireless for Smart Temperature Humidity Sensor -- 230Ft wirless transmission in open air, and low power consumption. Our long-range coverage enables its use in areas challenging for most residential Wi-Fi systems, such as basements, outdoor porch/patio areas, sheds, free-standing garages, even remote outbuildings on your property.\nReal-Time Enviroment Monitoring with Alarm -- Be informed of the current temperature and humidity of critical equipment and rooms, as well as receive instant notifications of changes based on your personalized criteria.\nAPP Rmote Control -- With App which can display current temperature and humidity, with the app you can easy to control your home enviroment by adjust app connectted home appliances, such as air condition to adjust temperature or power on for smart plug connected humidifier to promote living enviroment.\nHub Free -- No hub required, just connect our for smart temperature and humidity sensor with our wifi router and then add our devices to for smart the app, you can use it freely without for time and distance limited.\nLarge LCD Monitor -- Large LCD display, with clear and large character easy to read even at long distances. Elegant white round edge design, good decor your home.\n\nWifi for Smart Temperature Humidity Sensor\nColor: White\nMaterial: ABS\nWireless Technology: WIFI\nWorking Voltage: for DC 4.5V ( 3 x AAA battery not include)\nTransmission Frequency: 2.4GHz\nLow Power Indication: Yes\nWorking Temperature and Humidity: -10℃ - 55℃, 0 - RH\nWireless Distance: 7M(open air)/Indoor 20M\nSize: 64 * 64 * 28mm\n\nPacking List:\n1 * Wifi for Smart Temperature Humidity Sensor"]