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ABUS MK4200 Opening Detector for Steel Doors Abus MK4200 P The ABUS MK4200 Opening Detector for Steel Doors is a magnetic contact for protecting large garage doors the unauthorised opening is detected and reported to the alarm panel This opening detector is ideal for fitting to steel and metal doors its special construction enables its use on these materials P P The detector consists of a magnetic contact reed and a magnet that are fitted parallel to each other The electric cir
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