Blue Sea Systems DC Micro Ammeter, 0-50A, 2 in Face, External Shunt, Backlit

Overview

The Blue Sea Systems 8041 is a DC analog micro ammeter with a 2 inch face and a 0 to 50A range for panel-mounted current monitoring on board. It reads through an external 50A/50mV shunt, so the meter itself can stay at the panel while the shunt is installed in the circuit being measured.

This is a straightforward way to keep an eye on DC current without moving to a digital display. The analog needle gives an at-a-glance reading that works well on a helm electrical panel, switch panel, or other DC monitoring point where you want to check charging or load current quickly.

The meter uses a simple 2-wire connection from the shunt and powers from that same connection. Its backlit face can be wired separately for 12V or 24V DC panel lighting, which helps when the panel is used at night or in low light below deck.

Key features

• 0 to 50A DC analog reading for circuits that need a clear, quick visual check
• 2 inch face size for compact panel installations
• External 50A/50mV shunt included for remote current measurement
• Simple 2-wire connection from the shunt, with no separate meter power feed required for operation
• Backlit meter face with separate 12V or 24V DC backlight connections

Installation and setup

This meter is installed at the panel, while the supplied shunt is mounted in the measured DC circuit. That layout helps keep heavier current off the back of the gauge and makes it easier to place the display where it is easy to read during normal use.

It is a good fit for owners building or refreshing a DC monitoring panel and for anyone who wants a dedicated analog reading instead of relying only on a multifunction display. When planning the circuit, the main sizing point is the 50A full-scale range, so it suits lower-current DC monitoring jobs better than main battery runs that exceed that level.

Compatibility and fit

This ammeter is intended for DC systems and is best matched to applications where a 0 to 50A range is appropriate. On a boat, that can include monitoring a charging source, a smaller distribution leg, or a dedicated accessory circuit where seeing current flow in real time helps with troubleshooting and day-to-day checks.

For buyers comparing panel meters, the main fit questions are face size, current range, and shunt type. Here, the 2 inch face works where panel space is limited, and the included external shunt means the meter is set up for standard remote current sensing rather than carrying measured current directly through the gauge body.

What’s included

• DC analog micro ammeter
• External 50A/50mV shunt

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