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Protecting Wood Door Thresholds with Recessed Contacts APPLICATION For wood doors with aluminum thresholds, it is sometimes convenient to mount the magnet in the bottom of the door and the switch in the hollow space beneath the threshold. Note: Because of the distance between the magnet and switch, a Sentrol wide gap switch should be used. INSTALLATION Select a recessed-mount wide gap Interlogix switch. Drill horizontal hole for magnet in outside edge of door. Coat magnet with RTV mo …

Protecting Truck Tailgates APPLICATION Roll-up truck tailgates can be protected with magnetic contacts that have sufficient durability, gap and vibration resistance. INSTALLATION Select location for Interlogix switch on wood or aluminum on the truck side just forward of the track. It is best to mount near the top, at a point where the track starts bending. Install by placing spacers behind switch to build out slightly beyond track. Mount magnet on tailgate door using bracket. Positio …

Protecting Thin Frame Windows APPLICATION Securing Pella or sliding aluminum windows or doors which have thin window frames and limited space for mounting the switch. Sentrol’s 1145-W ultra- miniature surface-mount magnetic contact, with regular or wide gap operating distance, is ideal for this application. INSTALLATION Determine best position for Sentrol switch and magnet. Magnet will be mounted on frame of glass. Interlogix switch and magnet are mounted with very high bonding t …

Protecting Steel Doors with Threshold Contacts APPLICATION For steel doors with aluminum thresholds, it is sometimes convenient to mount the magnet in the bottom of the door and the switch in the hollow space beneath the threshold. Note: Because of the distance between the magnet and switch, a Sentrol wide gap switch should be used. INSTALLATION Use a Sentrol steel door magnet combined with an Interlogix wide gap switch. Remove door from hinges. Drill 1" (2.54 cm) diameter hole …

Protecting Steel Doors with Recessed Top APPLICATION 1 Recess of 1/2" to 3/4" Some steel doors are recessed at the top, creating a large gap which must be overcome when using a concealed magnetic contact. This page and the next two pages give three methods for solving this problem. The different methods are for different size recesses. The first method uses a regular switch with a door recess of 1/2" to 3/4" (1.27 cm to 1.9 cm). Caution: Consult factory for installati …