The Whelen 97db Electronic Back-Up Alarm offers the sound level output you most often require at an economical price. 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 feet, as specified in SAE J994 (March, 1985) PIEZO BACK-UP ALARMS. Operational temperature range from -22°F to +131°F.
Decibles: 97db (+/-4dB (A) @ 4 feet)
Volts: 12-24 VDC.
Operational temperature range: -22°F to +131°F.
Weight: 10 oz.
Size: 2-3/4" (69mm) H x 1-1/2" (38mm) W x 4" (102mm) L.