The Techno Tools Corp. Wireless Battery System Tester, No. B600, allows the user to run battery, starter and charging tests from inside the vehicle or while the vehicle is driving, and is also ideal for testing hard-to-reach batteries and battery systems in trucks and marine applications. With remote distances up to 50', shop owners can show customers in the waiting room real test time data. The No. B600 tests all 6V, 12V and 24V lead acid batteries individually or in parallel and series battery packs, as well as 6/12/24/36V starter and charging systems including starter draw, alternator and regulator output (loaded/unloaded) and diode ripple.