AC voltage tester from Engko, 12 volts ~ 1000 volts, VD100091

Alternating current effort: 12 volts ~ 1000 volts (high sensitivity) 48~1000 volts (low sensitivity) frequency: 50/60 Hertz alarm mode: sound and light alarm flashlight: white LED flashlight battery level indicator automatic shutdown with two R03 AAA batteries packed according to color