Door Alarms | McMaster-Carr

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32 Products

Electrical

Magnetic Switches

Magnetic Switches

Actuate when a magnet comes within sensing distance; often used to detect when doors or windows open

Communication

Audible Alarms

Everything from bells and whistles to horns and sirens

Audible Alarms/Indicator Lights

Audible Alarms/Indicator Lights

Alert people with both light and sound

Building and Machinery Hardware

Push Bars

Open doors with a push; often found on emergency exits

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)