Fast and Accurate AC / DC Ampere Clamp Meter : utomatic clamp multimeter, can measure AC / DC current, AC / DC voltage, resistance, capacitance, on-off, temperature, diode and frequency (Hz); A perfect troubleshooting tool that will help you solve electricalproblems in the car or at home quickly and safely Contactless Voltage Detection : When AC voltage is detected, a visible LED lights up and emits a beep; The multimeter's flashlight will only glow when the current is being tested Overload Protection : Overload protection and double insulation protection prevent electric shocks and protect users from hazardous areas Versatile and Easy to Read : a large, high-resolution LCD with large backlighting ensures better visibility in dark work areas The "Return to Zero" Function : reduces data errors affected by the earth's magnetic field and helps you get more accurate measurements Automatic Sleep Mode : After 30 minutes of inactivity, it automatically switches to sleep mode to save energy Low Power Indicator : When the clamp meter is in a low battery state, the LCD display of the clamp meter will display a low battery symbol to remind you to replace the battery