Something like this non-contact induction voltage tester is a handy tool to have with you.
It shows presence of voltage without having to stick probes into anything.
Great for checking continuity through a breaker or voltage in a wire or at an outlet.
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Now: 2019 Winnebago 2500FL w/e2 WDH;Sold: 2015 Bullet Premier 19FBPR (shown)
2012 Ford F-250 Lariat Super Duty Crew Cab (gas 6.2 L, 3.73 gear ratio 2WD, 172" WB)