Installing the Keyless CompX StealthLock® Cabinet Locking System

The CompX StealthLock is a keyless cabinet locking system that operates electronically. To gain entry, users enter codes into the remote Transmitter Pad that wirelessly operates the hook style latching mechanism. The StealthLock uses radio frequency...


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For the purpose of this article, we installed a Standard version StealthLock into a computer desk drawer. These basic instructions will apply to a cabinet door as well. CompX has posted installation and programming videos and downloadable instructions online at web site: www.stealthlock.com.

The StealthLock has been designed to operate with most cabinetry door and drawer mechanisms. The Installation Tool has been redesigned to accommodate both the small and larger stops that prevent the drawer from hitting against the cabinetry front.

The desk is constructed of laminate covered pressboard type material. Important: The StealthLock is designed for mounting in cabinetry having solid panel construction and full overlay doors. The Receiver Latch requires a minimum of one-half inch space either along the side, top or bottom of the drawer. Check the drawer box to see which location best fits your application. For inset cabinet doors or drawers, an installation template is available at web site: www.stealthlock.com

In order to install the StealthLock into cabinetry, the latch mechanism must but set to the unlocked condition. To unlock the latch mechanism, the four AAA batteries must be installed into the Receiver Latch.

Once power has been provided, press the Learn Button until the yellow LED illuminates. If the Receiver Latch is locked, it will unlock. The recessed Learn Button and green/yellow LED is located on the exterior side of the Receiver Latch. The Learn Button is also used to enter the programming mode in order to program the Receiver Latch.

Important: When programming a StealthLock, only the Receiver Latch is programmed. The Transmitter Pad is not programmed. The Transmitter Pad is just a sending unit. The Receiver Latch programming is changed.

Press the Learn Button using a suitable pointed probe. Press the Learn button until the yellow LED illuminates, indicating the Receiver Latch is in the unlocked position. This way, the Strike Plate can be located onto the inside of the drawer front and still be able to open the drawer to complete the installation.

Make certain the strike plate with Installation Tool is secured within the Receiver Latch. The Installation Tool serves several purposes. It is used to align the Receiver Latch on interior side of the cabinetry and the Strike Plate on the door or drawer face.

Position the Receiver Latch having the tabs on the Installation Tool plumb against the front edge of the cabinetry. Hold Receiver Latch in place and mark the locations of the four mounting screws. Drill four pilot holes and install the Receiver Latch using the four #6 by ½” provided screws.

Remove the release paper from the Strike Plate.

Carefully close the drawer to be certain the adhesive on the Strike Plate attaches to the back of the drawer front in the proper mounting position.

Carefully remove red installation tool. Save it for servicing issues and possible future installations.

Install the two #6 by ½” screws to secure the Strike Plate. As an option, place one screw in one of the two holes in the strike plate. The second screw can be installed in the hole adjacent to the strike plate pin in order to secure the strike plate against the drawer box.

Close and open the drawer to be certain the strike plate enters the Receiver Latch.

Thought should be given to where to locate the Transmitter Pad. The Transmitter Pad must be within 15 feet of the Receiver Latch. The Transmitter Pad can be mounted onto the cabinetry or placed in a less exposed location. The Transmitter Pad has double-stick tape on the back plate. For example, a Transmitter Pad was mounted onto the rear of an employee nameplate. As an option, a metal StealthLock Mounting Plate encases the pad and is screwed in place.

The advantage of the Mounting Plate is the battery cannot be removed without first unscrewing and removing the plate. This can be beneficial as there are some applications where an employee will unlock the Receiver Latch, then disable the mechanism eliminating having to enter the code in order to gain access to the content of the drawer or cabinet. To make battery removal more difficult, the Receiver Latch was designed to have the battery box accessible only by first removing the latch.

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