This alarm plays a recorded message when it detects someone passing within 6 1/2 feet.

Just like the bells you hear at service stations, these bells ring when a vehicle drives over the attached hose.

A chime announces when someone passes through the infrared light beam and a counter keeps track of each entrance and exit.

Arm and disarm these alarms with a key.

These whistles operate with the press of a button instead of your mouth, allowing multiple people to use them while lowering the risk of spreading germs.

Buzzers meet NEMA 4X for protection and corrosion resistance in washdown environments.

When water contacts the sensor, it triggers a buzzer to alert personnel to a leak or overflow hazard. Frequently used to monitor sinks, pipe lines, tubs, and sump pumps.

Buzzers are UL listed for use in environments where flammable gases, combustible dust, and combustible fibers may be present.

Sirens can emit both continuous and pulse tones—pulse tones alternate on/off to draw greater attention than continuous tones.

When this horn runs out of air, recharge it with the included pump.

The quick-opening valve on these whistles allows manual operation—pull the valve while air or steam pressure is being applied to produce a shrill tone and alert workers.

Lights combine high-visibility strobes with a buzzer that warns workers of hazards even when they’re outside a direct line of sight.

The revolving motion of the light makes these more visible than flashing lights.

Good for tight spaces where a tower of lights won't fit, these emit three colors from a single lens.

Use a computer to program colors, lighting patterns, and sounds to communicate a variety of status conditions, material levels, and cycle times—these stack lights have 21 colors and 11 sounds.

These horns produce a sound loud enough to be heard in industrial settings.

These alarms beep loudly and repeatedly when a vehicle moves in reverse.

Operate low-voltage devices that require less than 48 volts, such as doorbells and buzzers.

Mount these bells up to 25 ft. away from your phone and they'll alert you when someone calls.