Back Up Alarm Maximum Sound Level 107 dB Minimum Sound Level 82 dB Overall Length 5 3/4 in Overall Width 3 in Overall Height 4 in SAE Type Rating Type B Color Black Housing Material Plastic Current 0.4 A Features Crawlers Heavy-Duty Smart Alarm Suitable for Installation on Construction Equipment Lift Trucks Reduces Complaints Concerning Excess Noise Refuse Trucks Smart Alarm Automatically Adjusts so that it Maintains a Minimum of Ten Decibels above the Noise around It