Security & Fire Protection Systems/NAPCO Magnum Alert 1008lk


We installed our alarm back in 1988 when we built our house. We have not used it in the past 10 years and forgot the code. Can you explain to me how to program a new code so we can use our alarm again. We had an electrical problem and had to unplug it for a week. I plugged it in, it went off for 30 sec. and stop. If you walk by the motion detector it will go off but we can't remember the code to shut it off. Any help would be appreciated.

You're going to have to source a new battery as well.  You can pick one up from Home Depot or Lowes.  It's a sealed lead acid unit likely rated at 12 v 4.5 or 5AH.  If you can (and you have room inside the main control, go for the 12v 7AH unit.

You can download the manual for your equipment at  If the system has been operating as a local system, the default code should still be in place.  I wouldn't suggest defaulting your panel as programming the Napco products can be a real pain without the software and the direct connect kit.  The older Napco products software will only run on a Windows XP machine.

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Frank Kurz


Questions relating to Burglar Alarm and Security Equipment, Fire Alarm and Extinguishment Systems, Access Control, CCTV Systems, Installation, Service, Testing, Verification


30 years installing, servicing, and testing security, access control, extinguishment, and fire alarm systems

Chair of ULC Working Groups for Fire Alarm Testing (CAN/ULC-S536) and Fire Alarm Verification (CAN/ULC-S537), Executive Director of the Fire Protection Technicians Network (

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Associate in Science; Emergency Systems (University of British Columbia); Aircraft Maintenance Technology (BCIT)

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