These switches actuate when a magnet comes within sensing distance, and reset when the magnet moves away.

Use a free, downloadable app with these switches to automate alarms in your facility, such as sounding a buzzer if a trailer door is opened after a certain time.

Prevent unauthorized use—these switches require coded magnets to actuate. They cannot be bypassed using ordinary magnets.

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.

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.

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.

Made of 304 stainless steel, these touch bars stand up to corrosive environments.

In addition to a bolt that locks your door when the alarm is armed, these levers have a latch that automatically locks the door when it's closed.

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