Schlage Electronics FSS1-S FSS1 High Security DPS Surface Mount with Conduit 10 - 30VDC/typically 50mA Door Gap 1 - 7mm Door Movement 15mm Space for Type 1 and 2 Modules

The FSS1 Series of high-security Door Position Sensors (DPS) are designed to provide a true high-security solution with adjustable anti-tamper features to help prevent against attacks through magnetic, electronic or physical means. FSS1 learns its three-dimensional environment using one sensor to detect the distance of the magnetic faceplate in relation to the device, while the other six sensors are used to determine the polarity, size, strength and position of the magnets on the unique faceplate. Any interruption, change or tampering with the device cover will trigger a response at the door and/or through the network as a silent or audible alarm.