... NC/NO inputs, connect dry contact NC NO device>>UP TO 8 Relay outputs drivable (12V-24V ... Reliable performance with built-in double watchdog>>Automatic device condition report through SMS every 24 hour interval ... 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, ...