Measures the noise outside and produces a "beep beep" sound that's 5 dB louder Instantly self adjusts from 87 dB to 112 dB It's smart! Adjusts warning sound to the surrounding noise — makes sure your warning is heard. Heavy-duty black painted steel housing with electronics sealed in epoxy to protect against dust, moisture and vibration. Operating range: 12 to 24 volts. 3"H x 5"W x 2-13/16"D. Includes universal mounting bracket and wire leads to simplify installation plus hardware and instructions. Comes with manufacturer's 6-month warranty.
Price: $135.86
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