Detection: Temperature / relative humidity ; Measurement range: -10 °C ... 55 °C ; Measurement of humidity: 0 % ... 99 % ; Alarm signaling: Buzzer, Signal to the Tuya Smart mobile application ; Frequency range: 2.4 GHz WiFi ; Radio communication range: The range limited only by the availability of the Wi-Fi network ; Mobile phones support: It is possible to operate via the Wi-Fi network from the mobile application on the iOS, Android systems ; Main features: LCD display ;