Mercury – Voltmeter 8–18V | Electrical System Monitoring | Black Face | Chrome Bezel | 79-8M6020009

Overview
This 8–18V voltmeter gives you a steady look at how your electrical system is holding up while you’re out on the water. The needle moves in a slow, even sweep, so dips and spikes stand out without getting mixed in with hull movement. It’s the kind of gauge you check out of habit—quick glance, quick answer, and back to running the boat. Simple, clean, and built for everyday use.

Key Features
    • 8–18V Scale – Shows battery and charging voltage in a clear range.
    • Smooth Needle Movement – Stays steady through chop and throttle shifts.
    • Standard Dash Fit – Drops easily into common dash cutouts.
    • Backlit Display – Easy to read when light starts fading.
    • Marine-Durable Build – Handles spray, vibration, and daily running.

Engine & Boat Compatibility
    • FourStroke outboards
    • Verado series
    • Pro XS engines
    • SmartCraft systems

Performance & Practical Benefits
On the water, this gauge helps you catch electrical issues early—low voltage, weak batteries, or odd charging behavior. The sweep stays calm, making changes easy to spot without staring at it. Whether you’re cruising, idling, or running electronics, it gives you a quick sense of how the system is holding up. It becomes a natural part of keeping the boat ready for the day.

Why Buy OEM
OEM gauges read Mercury’s electrical signals properly, so the voltage you see is accurate. They handle heat, weather, and vibration better than cheaper versions. Most boaters stick with OEM because electrical health isn’t something you want to guess on.

FAQ
1. How do I know the voltmeter is going bad?
If the needle jumps, freezes, or barely moves, it’s likely wearing out.

2. Does this gauge need calibration?
Most setups read correctly right away, though checking wiring during install is smart.

3. How does it handle saltwater?
A quick rinse after each run keeps it healthy through saltwater seasons.

4. Anything important during installation?
Clean grounds and tight power connections help keep the reading steady.

5. What does low voltage usually look like?
The needle dips low and stays down, especially when you load the system.