Features:MULTI TESTER: Measures AC/DC current, AC/DC voltage, non-contact AC voltage (NCV) detection, live/zero line detection, resistance, capacitance, continuity, diode, temperature, and frequency.LOUD BEEP: NCV sensor and live/zero line detector send out audible and visual alarm once AC voltage detected.PRECISION MULTIMETER: Give an accurate reading on home appliances, cars, electronics, HVAC and more.WIDE JAW OPENING: Up to 1.1 inches(28mm) jaw opening is wide enough to clamp on wire without disturbing circuit.EASY TO USE: Offers you with auto-ranging and manual ranging mode, extremely simple to use.SAFE AND RELIABLE: Provided with overload protection and 1000V, 10A test leads, safe and reliable to use.AUTO-OFF: Automatically shut down if no operation in 15 minutes, and beep when it shut-off.MORE FUNCTIONS: Features data hold, flashlight, Celsius/Fahrenheit degree, low battery indicator and more.