Alarm Lock PG21S Metallic Silver Pilfergard 95 Decibel Dual Piezo Siren Surface Mount Door Alarm with Amber Strobe Light

- Item #: BCI1635034

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Metallic Silver
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This product has additional required/recommended options. To configure, add to your cart.

  • Power Cord Recommended
  • Cylinder Recommended

Pilfergard 95 Decibel Dual Piezo Siren Door Alarm with Strobe

This magnetically activated, easy-install, battery operated door alarm will ensure that unauthorized entry is met with an alarm, strobe and delayed access, if desired. This unit features convenient plug-in, "no-cut" jumpers and 9V battery power. The PG Series includes advanced narrow-stile microprocessor-controlled door alarms 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.

Alarm Lock is committed to supplying advanced access and egress solutions for office, health care, education, transportation, and government applications. From property management or campuses to courts and military applications, Alarm Lock offers high quality security and a variety of access options.


  • 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.
  • Options include continuous alarm, minute shutdown with auto reset and exit/entry delay
  • Entry Delay Time Options: include 15 seconds, 1 minute 15 seconds & 3 minutes 15 seconds
  • Sleek design for use on standard size and narrow stile doors
  • Unauthorized use of door sounds alarm and activates LED indicator
  • Uses standard 1.25" mortise cylinder (not included) for interior activation and standard rim cylinder (not included) for exterior activation
  • Tamper switch supervised
  • Unauthorized use of door sounds alarm and activates LED indicator
  • Tamper switch supervised
  • Relay option
  • Highly visible amber strobe flashes when unit alarms
  • Two selectable arming modes –
    • Always armed mode: when key is turned counter-clockwise to the disarm position, the key cannot be removed until unit is turned back to alarm position
    • Standard arming mode: when key is inserted, turning counter-clockwise will disarm and key can be removed


  • Power:  Uses 9v battery (supplied).  AC power supply can also be used as a battery back up
  • Alarm:  Dual piezo siren measured at 95db
  • Cylinder:  Accepts most 1¼" mortise cylinder used for interior activation (not supplied) and standard size rim cylinder used for exterior activation (not supplied)
  • Installation:  Surface mounted for single or double doors
  • Cover:  Die cast metal

Additional Alarm Lock Links

Our SKU: Alarm Lock PG21S

This product is listed under the following manufacturer number(s):

  • Alarm Lock PG21MB
    Metallic Bronze
  • Alarm Lock PG21MS
    Metallic Silver

*Denotes a finish or option that has been discontinued

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Alarm Lock PG21S Reviews

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