Autel PowerScan PS100 Tool is the most revolutionary circuit tester to date. Featuring AVOmeter, test light, built-in flashlight, short circuit indicator, relay/component tester, continuity tester and bad ground indicator, the PowerScan is truly the ultimate in power and affordability, allowing users to check circuitry in one single step. An absolute must for every technician looking for a fast and accurate solution to electrical system diagnostics.