Alarm Switches | McMaster-Carr

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Strobe Light with Audible Alarm

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35 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

Safety Equipment

Fire Alarm Station Covers

Fire Alarm Station Covers

Shield your fire alarm pull stations from damage and tampering

Fire Alarm Pull Stations

Fire Alarm Pull Stations

Activate to send a signal to your control panel if there's a fire

Fluid Handling

Paddle Level Switches

Paddle Level Switches

Actuate when the paddle stops rotating to indicate the level of dry material

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