BATTERY ENERGY GAUGE HAND-HELD By MARINETECH PRODUCTS The original hand-held battery gauge that makes battery usage easy and convenient. Features a new design that comfortably conforms to your hand. Measures the exact power remaining in any battery. Simply clip one lead to the negative terminal, then contact the positive terminal with the probe and you'll have an instant, accurate power reading. No more guessing or running out of battery power! Made with a high-impact case and heavy duty contacts to provide years of rugged and reliable use.
BATTERY ENERGY GAUGE PERMANENT MOUNT By MARINETECH PRODUCTS Here's a permanent-mount gauge that fits into any standard 21/16" instrument cutout panel. It provides the most accurate percent-of-charge readings and can be custom-wired for monitoring one or more batteries. Internally lighted for night time use, its rugged design makes it ideal for virtually any boating, RV or automotive application.