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

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

Attract more attention with a strobe light as well as an audible alarm. Arm and disarm these alarms with a key.

These make great doorbells when used with a push button.

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

Apply air or steam pressure to produce a shrill tone and alert workers. Signal continues as long as pressure is applied.

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

Toss these pocket-size air horns when they run out of air.

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

Get notified about equipment issues even when you aren't around your machines. These lights connect to your computer via Ethernet, allowing you to set up email alerts when there is a problem with a machine, server, or conveyor.

The buzzer warns workers of hazards even when they’re outside a direct line of sight.

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

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

This horn has a built-in compressor, similar to that in a car horn, for a louder sound than other lift truck horns.

With no moving parts as well as sealed electronic components, this horn is built to last even in wet conditions.

Indicate forward or reverse motion with these bells. They mount directly to a vehicle's wheel hub, without switches or wires.

When visible smoke particles or carbon monoxide is detected, this stand-alone detector alerts you with an audible alarm.

When this detector senses carbon monoxide, it sends a signal to your control panel and sounds an alarm.

Link multiple detectors in tandem to warn occupants outside the vicinity about potential fire hazards; if one unit is activated, they're all activated.

An audible alarm and warning light alert you to the presence of propane.

An audible alarm and warning light alert you to the presence of propane, methane, hydrogen, and carbon monoxide. This detector has a relay for connection to auxiliary alarm systems.

Use the probe to test the air in a hazardous area before entering. Great for confined spaces.

When these detectors sense high levels of carbon monoxide, they alert you with an audible alarm, warning light, and vibrating alarm.

An audible alarm and warning light alert you to the presence of hydrogen.