Consists of a float switch and an in-dash gauge that features both a visual and audible 85 db alarm Allows an unarmed compartment to be constantly monitored Complies with CFR 182. 530, which requires a visual and audible alarm in each unmanned space on commercial vessels at least 26' in length For use with pumps with a current draw of up to 20 amps @ 12 volts Size: 2-1/4" x 5" x 2-1/64" Sport type: Boating