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

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

Horns are UL and C-UL listed for indoor and outdoor use in Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; and Class III, Division 2 hazardous locations.

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

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.

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.

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

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