... sensor, temperature sensor, water overflow sensor, AC power failure sensor, oil pressure sensors, etc. A GSM Remote Terminals’ (GSM RTU). It can work with ... 8,0,1>>Temperature: -20-+70 °C>>Humidity : Relative humidity 95% ( ... Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break Sensor, Shock Sensor, Power failure sensor, etc.>>>>>>>Why KING PIGEON? King Pigeon is a professional GSM Wireless Alarm ...