The DSC PG9975 Vanishing Wireless Door/Window Contact offers a discreet way to monitor a door or a window. It is one of the thinnest surface-mount sensors we have seen, and it is nearly invisible once installed. But despite its small size, it boasts all the features of a PowerG Sensor.
What's most striking about the PG9975 is the fact that it is wafer-thin, with a thickness of just 0.3 inches. The complete dimension for the sensor are 2.45"L X 1"W X 0.3"D. But this small size doesn't stop the sensor from offering some impressive features. It will work from up to 2 kilometers away from the panel with a clear line of sight. Also, 128-bit AES encryption prevents the PG9975 from being hacked or taken over wirelessly.
The device works in conjunction with an included magnet. The PG9975 should be installed on the door or window frame, and the magnet should be installed on the door or window itself. For best results, the magnet should be placed within a quarter-inch of the sensor. When the door or window is opened, the magnet will separate from the sensor. This will cause a switch inside the sensor to activate. The sensor will then send an alert to the system to let it know about the open window or door.
The PG9975 can be mounted with either screws or with double-sided foam tape. The device comes included with the double-sided foam tape for easy installation. The device has a battery life of about three years with average use. A user can easily replace the 3V CR2032 lithium battery when it dies. The device will work with any DSC PowerSeries Neo System or any Qolsys IQ Panel 2 System with a PowerG daughtercard.
NOTE: The maximum range for a PowerG Sensor when used with an IQ Panel 2 Plus System is only 2,000 feet in open air. This is considerably less than the advertised 2km range. The 2km range refers to when a PowerG Sensor is used with a DSC PowerSeries NEO System.