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Exit Alarms
Door Alarm - Door alarms notify others of someone leaving the property. They are frequently installed in any facility where someone may leave from the wrong exit or without permission. Door alarms reduce theft and make it easier to monitor where people enter and exit without sacrificing fire safety.
Door Prop Alarm - They help keep energy costs down by ensuring the doors are closed. An intelligent circuit senses the external magnet location automatically, sounding an alarm when the door has been open too long, and automatically rearms when the door has been closed again; requires no waiting for the key holder to arrive.
Frequently Asked Questions
What is an exit alarm?
An exit alarm is a door-mounted security device that sounds when an emergency exit door is opened. It is designed to deter unauthorized use of exit doors without restricting life safety egress. At National Lock Supply, we supply retrofit exit alarms compatible with most panic bars.
How do exit alarms compare to standard panic bars?
Standard panic bars provide safe exit only, while exit alarms add an alert function, notifying staff of potential security breaches, theft, or misuse. This makes them especially valuable in retail and healthcare environments.
Are exit alarms battery-powered?
Yes. Most are battery-powered (9V or lithium) for quick installation, but wired models exist for integration with access control and central monitoring systems.
Can exit alarms be reset after activation?
Yes. Exit alarms can be reset or silenced by authorized staff with a key or code, ensuring controlled management without disabling emergency egress.
Where are exit alarms typically used?
They are common in retail stores, schools, healthcare facilities, and warehouses, where exits must remain available for emergencies but restricted against daily misuse.
Are exit alarms compliant with building codes?
Yes, provided they do not delay or block free exit. They are designed to meet NFPA and IBC requirements for life safety.
What finishes and housings are available?
Exit alarms are typically housed in Satin Aluminum or Dark Bronze casings, blending with commercial door hardware.
Can exit alarms integrate with access or alarm systems?
Yes. Many models provide relay outputs to connect with fire alarms, intrusion panels, or building monitoring systems for centralized reporting.
Are exit alarms easy to retrofit?
Yes. Most retrofit directly to rim or vertical rod exit devices with minimal tools, making them ideal for quick upgrades.
Why buy exit alarms from National Lock Supply?
We provide UL-listed exit alarms designed for commercial durability, helping businesses comply with safety codes while reducing theft and unauthorized exits.