Alarm Controls TS-18 Under-Counter Door Release Switch

The Alarm Controls TS-18 is a discreet, push-button-operated under-counter and under-desk door release switch designed for remote control of commercial doors and electronic access control locking devices. Purpose-built for front desks, reception areas, and any location where a concealed, unobtrusive door release is required, the TS-18 provides instant momentary-action control exactly where it is needed.

Key Benefits

• Discreet under-counter installation — keeps the release point hidden from public view, ideal for reception counters, security desks, and teller stations
• Momentary-action switch — sends a momentary signal to the access control locking device, releasing the door on demand without latching in the open position
• Protected push button — 1-inch guard ring surrounds the button to prevent accidental activation
• Compact, surface-mounted enclosure — black ABS plastic box with two mounting ears mounts cleanly under a desk or counter surface
• DPDT variant available — the TS-18D model features a Double-Pole Double-Throw switch for installations that require two independent circuits to be controlled simultaneously
• Broad electrical compatibility — one normally open (N/O) and one normally closed (N/C) contact set rated for a wide range of control circuits

Typical Applications

• Front desk and reception area door release for electric strikes, magnetic locks, and electrified locking devices
• Security and access control stations requiring a concealed request-to-exit or door release point
• Office and commercial building lobby entry control
• Medical, dental, and healthcare reception — discreet patient door release
• Retail environments with controlled back-office or stockroom access
• Any access-controlled egress application requiring a manual release device per IBC or NFPA 101 requirements

Access Control Code Relevance

Under-counter door release switches like the TS-18 are frequently used as the manual release device in access-controlled egress door assemblies. IBC and NFPA 101 require that a manual unlocking device be positioned 40–48 inches AFF within close proximity of the door to directly interrupt lock power and allow immediate egress. Verify placement and signage requirements with the authority having jurisdiction (AHJ) for your specific installation.

Technical Details