Enerna IoTech Cellular 4G LTE IoT RTU Temperature Humidity Alarm Controller. It can Be controlled by SMS mode or 4G Data Network Mode. the 4G switch Controller support wide applications, such as access control system, Pump motor controlling, smart light fan switch, generation room monitor Control Enerna IoTech Cellular 4G LTE IoT RTU Temperature Humidity Alarm Controller Temperature & Humidity Control function: If the Temperature(humidity) is less than (more than ) the tempeareture (humidity ) you set, the device will switch on/off automatically as you Required. for example: If you need the device to work automatically when the device less than ( more than ) a certain temperature /humidity, you Can use this function. Skype: iotech(at)foxmail.com Whatsapp: 0086-137-2827-9456 Wechat: 13728279456 Web: Enerna-IoTech.com Enerna IoTech Cellular 4G LTE IoT RTU Temperature Humidity Alarm Controller Function: 1. Remote Control, no distance limitation 2. Dial Control first relay, SMS control 4 relays 3. 4G Data network Remote Control Via App 4. with 4 relay output (10A/30VDC, 10A/250VAC) 5. Support Temperature/Humidity Control 6. Scheduled/Timing Control 7. Industrial class design, Aluminum alloy material Packing List: 1* Enerna IoTech Cellular 4G LTE IoT RTU Temperature Humidity Alarm Controller 1* User Manual