^Use in closed-circuit alarm systems ^Detects shock to window glass, walls, or ceilings ^Gold-plated contact points ^Built-in tamper switch ^Contact pressure: Adjustable from 1 to 50g ^Contact rating: 1.0A at 50VDC ^Life: Over 100,000 contacts ^Size: 5/8 x 7/8 x 2 3/8" (16 x 22 x 60mm)