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Alarm Lock Key Activated Exit Alarm with Strobe PG21MSS

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Alarm Lock Key Activated Exit Alarm with Strobe PG21MSS

Alarm Lock Key Activated Exit Alarm with Strobe PG21MS

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  • Alarm Lock Key Activated Exit Alarm with Strobe PG21MS

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Alarm Lock Exit Alarm with Strobe PG21MSS

Alarm Lock's PG21 Series Narrow Stile Door Alarms have long been an industry staple in all applications, from retail, to firms, to institutions and schools. And now the best, just got better! The New & Improved PG21 MS Series Door Alarms have new features and a new Designer Look that fits both standard size and narrow stile doors. The new Strobe Option for sight and sound upon alarm is a necessity when time is so critical in apprehending a perpetrator making an un-authorized exit. Now security staff can audibly and visually pinpoint which door, across the floor, even among a whole bank of doors, has been violated faster than ever.

The PG21MSS is a magnetic contact controlled door alarm for surface mounting on a door or door frame. Typical applications include emergency fire escape doors,nursing home stairwell doors, rear restaurant and theater doors. PG21MSS is designed to continually monitor the status of a door. When opened, the protected door triggers an alarm sounder, an optional strobe or can activate another device via a Form-C relay.


Two selectable arming modes:

  • Always armed mode: when key is turned counter clockwise to the disarm position, the key cannot be removed. To remove key, turn back to arm mode, thus keeping unit armed always.

  • Standard arming mode: when key is inserted turning counter clockwise will disarm and key can be removed. Turning key clockwise will arm and key can be removed.
  • Max-Flex Terminals, allowing for any or all of the following:
  • Continuous power with the addition of an external power supply
  • Multiple door monitoring permitted with built-in external reed switches
  • Status Indicator: The LED will indicate RED when armed.
  • Entry Delay Time Options:  include 15 seconds, 1 minute 15 seconds & 3 minutes 15 seconds
  • Sleek model design key-activated door alarm for use on standard size and narrow stile doors
  • Unauthorized use of door causes alarm to sound and activates LED indicator
  • Options include continuous alarm, minute shutdown with auto reset and exit/entry delay
  • Uses standard mortise cylinder
  • Tamper switch supervised
  • For exterior key control, optional RIM cylinder may be used
  • Metallic silver or duranodic finish
  • Optional Strobe unit (shown) PG21MSS units include a highly visible amber strobe will flash when unit goes into alarm


MS - Metallic Silver

*** Note: Mortise Cylinder (1-1/4" length) not included ***

Additional Information

Weight 6.0000
Manufacturer Alarm Lock

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