The Whelen 107db Electronic Back-Up Alarm is a rugged alarm passed a one million cycle test and meets OSHA 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. The electronics are sealed in urethane, to resist tough environmental conditions. Operational temperature range from -22°F to +131°F.
Decibles: 107db (+/-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.