Tools & Answers for Fire Alarm Pros
Diagrams you can trust, calculators you’ll actually use, and a panel simulator that behaves like the real thing. Built for the jobsite and NICET prep.
Used by techs across CT & New England • Field-tested • NICET-friendly
Welcome
FireAlarmGuy helps working technicians move faster—from fundamentals to troubleshooting and NICET prep. Check out our Learning Management System (LMS).
Have a suggestion or spot something to improve? We’d love your help—more calculators, datasheets, or corrections. Contact us.