... ;16. Unmanned machine rooms;17. Control room application; 18. PLC and Automation, M2M;19. Access Control, Gate Opener, etc.>>>>>Mainly Features ... 0V-3.3V level signal>>Exterior dimension: 95×63×25mm>>Net Weight : 300 g >>>>>Standard Package list: >>GSM Controller ... , Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, ...