If our products have any problems, we can provide replacement / Return Service, welcome to contact us anytime!When purchasing a multimeter, please pay attention to the parameter information of the product.Features:Max display value:6000LCD display with backlight for clear reading.Can measures AC/DC voltage,resistance,capacitance,frequency,duty cycle,diode,continuity and live wire.VFC test and NCV test with warning alarm function.Includes True RMS,data hold and low battery indication functions.Auto power off in 15mins if there's no operation.Built-in LED flashlight,convenient to use at night or dark environment.With overload protection on all ranges.Equipped with a back bracket for supporting multimeter,and also can collect test probe for your convenience.Protected by rubber for drop protection.Great for troubleshooting automotive and household electrical problems.Specifications:Basic function:Maximum Display:6000Range Control:Auto RangeDC Voltage:0.5V~600VAC Votage:1V~600VDC Resistance:1ohm~10MohmCapacitance:600uF/6000uFFrequency:10Hz~1000HzSpecific function:Auto power-off:No operation delay 5 minutesBacklight:Delay 30 Seconds auto Power-offFlashlight:Delay 30 seconds auto power-offDiode:Voltage drop 2.0VBuzzer:overload protection 600V AC/DCBuzzer indicator light:internal resistance<;;30ohmNCV:3-2-1 correspond to strong-medium-weakNCV indicator light:YesFire wire distinguish:3-2-1 correspond to strong-medium-weakTrue RMS:10~400HzData hold:YesLow battery indication:YesCapacitance diode overvoltage alarm:overload protection 250V AC/DCSecurity level:CAT IIBattery : 3x 1.5V AAA (not included)