Tests 12-volt batteries and alternators. Fast, safe and simple to use. Displays open circuit voltage with a percent of charge LED. Remote battery testing capability with probes designed to work with leave-on charging cable set. Displays normal or over-voltage alternator output with a Good or Bad LED...

Penray TS200 Universal 3-Way Test Strips - Bottle of 25-Strips is the first and only test strip designed for all heavy-duty coolant types. They are a quick and effective way to test a cooling system in both conventional and extended life coolant. They are designed for use in all heavy-duty coolant t...

72 Battery Caddy and Tester.

12v Heavy-Duty Circuit Tester, Heavy duty test lead with spring clip which Tests 6, 12 and 24 volt AC and DC circuits. Reinforcing spring prevents damage to test lead at base of handle

A comprehensive text on how to take weather into account for the planning and navigation of voyages, local or global, using the latest technologies as well as the time-honored skills of maritime tradition, so that your time on the water remains as safe and efficient as possible. Covers practical app...