Below Left meter will tell you at a glance:
The Volts; Amperage from your batteries. The Meter on the Right ↓ tells you when the Ships battery(s) will be DEAD...
Boaters will know when to start the engine when anchoring. Aircraft owners will know when the IFR Panel will go DEAD
Both meters are useful..... knowing when the Elect Power will END.
Sold together or separately.
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Panel Fitting & Dimensions: Locate the meter's Bezel front to match your desired location attach with screws provided. Then snap locate the meter to the Bezel from behind. Overall dimension: 2 1/2 " long x 1 1/8" high.
Cut-out: 1 7/8" Long x 7/8" High