DSI ES4200-K0-T0 Door Management Alarm, No Key Switch, No Tamper, 4.6" W x 4.6"
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Detex EAX-4200SK Series Door Management Alarm Kit, 5-Piece, Includes ES4200-K4, RC65 Rim Cylinder, S3 Finished Back Box, TP-24 Plug-in Transformer and MS-1039S Mag Switch