Blue Sea 8246 AC Analog Micro A

The Blue Sea 8246 AC Analog Micro Ammeter is a compact, non-invasive current measurement solution designed for marine electrical systems, RV power monitoring, and industrial AC circuit diagnostics. Built by Blue Sea Systems—a trusted leader in marine electrical safety—this micro ammeter allows technicians and boat owners to monitor AC current flow without breaking circuit connections or disrupting active loads. Its simple installation and reliable performance make it an essential tool for anyone who needs real-time visibility into electrical consumption across AC circuits.

This analog meter operates on a revolutionary 2-wire connection principle: the meter senses and powers itself directly from an included AC current transformer that slips over the conductor being measured. No need to cut, splice, or interrupt the wire—simply place the transformer coil around the active conductor and connect the two leads to the meter. The backlit meter face ensures clear readings in low-light engine rooms, cabins, or outdoor installations. The included AC current transformer provides accurate sensing across standard AC circuits, making this instrument suitable for 120V and 240V systems commonly found in marine and RV applications.

Installers, marine electricians, and power system troubleshooters benefit most from this meter's non-invasive design—especially in tight engine compartments or hard-to-access electrical panels where circuit interruption is impractical. Use it to verify inverter output, monitor generator load capacity, diagnose circuit imbalances, or confirm proper operation of shore power connections. The compact 3 x 3 x 7 inch form factor and lightweight 0.25 lb construction make it portable enough to carry aboard vessels or transport between job sites. Compatible with standard AC current transformers and suitable for permanent or temporary installation in any AC monitoring application.