This device is designed to sense motion Sensitivity adjustments for exterior and interior zones Single zone sensor This device is designed to sense motion or movement within the vehicle's interior as well as provide a Pre-Warning output for movement outside the vehicle. It uses a microwave frequency to detect field disturbance within a contained area; hence it?s designed to be part of an automobile alarm system. IT WORKS LIKE A DOUBLE LAYER FORCE FIELD AROUND YOUR CAR. Also, it has sensitivity adjustments for exterior and interior zones to allow for a Pre-warning. In other words, THE RANGE CAN BE ADJUSTED. For example, when an intruder comes within the exterior range, the green LED lights up for a few seconds triggering your alarm to sound its pre-warning signal. When the intruder comes within the interior range, the red LED lights up and trigger your alarm system! This is perfect for convertibles! If your alarm system does not have a Pre-Warning input, this device can be used as a single zone sensor. As a single zone sensor, this device will still detect movement or motion inside your vehicle. Also, if you have an automatic window roll-up kit with your power windows, the Pre-Warning * trigger can be used to roll up your windows in the event of a possible intrusion or break in. The ultra high frequency wave will penetrate carpet, plastic, glass, wood, or fabric. It will not go through metals. It operates on 12 Vdc. Provides a 12 Vdc output when triggered. Includes hook-up diagram. 3.31" x 2.33" x 0.72" case w/ mounting ears. 4pin header. Pins on 0.1" centers. Includes Hook-UP Diagram
