ZOYI ZT DB03 Voltage Tester Dual Range Non Contact Electric Tester,AC/DC Sensitivity Electrical Pen Indicator with NCV, Flashlight, Buzzer Alarm, Wire Breakpoint Finder Temperature

Dual-range non-contact AC detection — Switch between 12–1000V high sensitivity and 48–1000V low sensitivity for preliminary checks on sockets, cables, switches and circuit breakers LCD signal and ambient-temperature display — View signal-strength feedback during AC checks; when no voltage signal is detected, the screen shows ambient temperature in °C or °F Selectable sensitivity — Choose high or low sensitivity to reduce unwanted triggers and support preliminary live/neutral checks Audible and visual alerts with LED torch — Signal bars, colour changes and buzzer feedback indicate the detected field while the torch illuminates dark areas CAT III battery-powered detector — Automatic power-off and low-battery warning, powered by two AAA batteries; test on a known live source before and after use