Electrical test kit measures AC/DC voltage, DC current and resistance and has a safety rating of CAT III 600V, Class 2, Double insulation. Features a bright green LED to indicate the tester is working; it changes to red and warning tones sound when voltage is detected. Digitally-controlled ON/OFF power button and auto power-off feature to conserve and extend battery life. Receptacle tester detects wiring configurations and indicates correct wiring, and identifies common wiring faults. Identifies open ground, open hot, open neutral, hot/ground reversed; it does not indicate quality of ground, multiple hot wires, or a combination of defects. Tests continuity with visual and audible continuity indicators. Includes test leads and batteries.