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.

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

These horns have disposable canisters that can be replaced when the propellant is gone.

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

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

No electricity or batteries are needed—as your door opens, the magnet and contact disc are separated, sounding a mechanical chime.

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.

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

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

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.

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.

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.

In addition to an audible signal, these alarms flash a high-intensity strobe to draw attention during fire emergencies.