Height clearance bar alarm quickly mounts on most existing height clearance bars with a thumbscrew. If it is disturbed by a strike from a vehicle for example, a loud warbling buzzer sounds for 10 seconds, accompanied by a flashing LED. (the time is adjustable)
Battery life is 10 years as it consumes no power until alarming. This yields a battery life expectancy of 22,000 alarm events from the lithium battery included.
Installation consists of pushing it onto the end of a 2″ PVC pipe and positioning it. When in the proper position, simply tighten the thumbscrew. That’s it!
HEIGHT BAR ALARM
Includes lithium battery