Fast, handy For 12V/24V circuits Wirehawk? requires just one hand to test circuits in hard-to-reach areas.; Works two ways: Captures and pierces wire with unique hook design or can be used as an ice-pick type tester.; Hook feature makes Wirehawk? simple to use and easy on fingers.; If circuit is live, bulb in handle lights up. Made of rugged plastic.; Has 16 gauge, 44-inch ground wire with 50 amp clamp. Test up to 15 volts.