Whelen electronic back-up alarms are proven reliable with less power consumption. Made of high impact plastic and sealed in urethane to resist tough environmental conditions. Made in the USA, with self-adjusting and standard economical models available.

• These rugged alarms have all passed a one million cycle test and meet O.S.H.A., Bureau of Mines, and State regulations.
• Decibel ratings for all alarms are +/-4dB (A) @ 4', as specified in SAE J994 (March, 1985)

PIEZO BACK-UP ALARMS

• The Whelen Piezo back-up alarms offer the sound level output you most often require at an economical price.
• Easy to install with years of field tested proven reliability.