PowerScan PS100 Auto Circuit Battery TesterPowerScan PS100 Auto Circuit Battery Tester Our Auto Circuit Battery Tester Determine at a glance whether a circuit is positive, negative, or open without having to reconnect clips from one battery post to another. Test for continuity with its built in auxiliary cable. A must for all technicians looking for a fast and accurate solution for diagnosing electrical systems. DC voltage, AC voltage, resistance, on and off tone. You can access and cycle
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