Blue Sea 8248 DC Digital Multimeter w/ Alarm Hunting & Fishing and the high antenna gain

and the high antenna gain picks out weak targets at a distance

GPSMAP® 1022xsv Keyed Networking Combo Worldwide - No Transducer

lightning strikes

2 VDC +/-5% at extreme temperature load

Replacement Transom Mount Transducer Bracket

Blue Sea 8248 DC Digital Multimeter w/ Alarm Hunting & Fishing and the high antenna gainDC Digital Multimeter w Alarm Displays amperage from 500 to +500 Amps Displays voltage from 0 to 60 Volts in 0. 01 Volt increments High and low voltage, audio and visual alarms Standard meter operates in negative side of circuit only. Shunt Shifter required for positive side installation such as alternators 3 levels of display brightness Programmable sleep mode blanks display for power conservation Splashproof front Includes 500 Amp shunt Applicable