Features Specification Features: The gateway is suitable for smart thermometer that can be controlled by the HOMGAP app. It is recommended that the distance between the gateway and the smart lock be no more than 10 feet (3 meters), otherwise the connectivity of the gateway will be affected. If you need to change the working Wi-Fi network, press and hold the button on the hub to reset your hub and reconnect. Gateway connects to the HOMGAR App to achieve remote unlocking, please make sure your mobile device is connecting with 2.4GHz Wi-Fi before using HOMGAR app. The hub has to keep staying under 2.4GHz Wi-Fi to work normally. When to start and keep Wi-Fi connection, please keep the power on to make sure the hub works normally. Specifications: Type: Pool Thermometer + Temperature Display Screen / Mini Box Hub (Optional) Material: ABS Receiver: Indoor Temperature Range: -9.9℃~60℃ / 14℉~140℉ Indoor Humidity Range: 1%~99% Pool Thermometer: Temperature Range: -9.9℃~50℃ / 14℉~122℉ Range Between WIFI Hub and Router: 160ft in the open area without interference Temperature Operating Range: 3℃~40℃ / 37℉~104℉ WiFi Frequency Band: 2.4GHz Only Input: 100-240V, 50Hz, 16A Power Supply: 2 * AA Batteries (Not included) Package Weight: 504g / 17.77oz Package Size: 23.5 * 12.1 * 11.5cm / 9.25 * 4.76 * 4.53in Package List: 1 * Mini Box Hub 1 * User Manual (English) Package List 1 * Mini Box Hub 1 * User Manual (English)