... -24V),drive electricity <0.2A >>*4 Analog inputs, 0-53mA, 10 precision(RTU5011)>>Reliable performance with built-in double watchdog>>Automatic ... Overflow Level Sensor, Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break Sensor, Shock Sensor, Power failure sensor, etc.>>>>>>>Why ...