The Major Tech LED AC/V DC/V & Continuity Voltage Tester is a two-pole voltage and continuity testing tool designed for electricians and technicians working on live circuits. It measures DC voltage up to 220V and AC voltage up to 690V, with 400Ω input impedance, polarity detection via LED indicator, and an audible continuity buzzer for quick fault detection. Rated to IEC 61010-1 CAT IV 600V and CAT III 1000V, this tester is ideal for electrical installation, maintenance, and troubleshooting work.