This flexible Clamp meter is a portable handheld professional detector that measures AC current and frequency. Suitable for electrical equipment testing and maintenance.Features:Flexible clamp,convenient to use.It can identifythe measured signals and display the result automatically.LCD displaywith backlight and flashlight, easy to operate and read.Data hold function, low battery indication, auto power off.Perfect for electrical devices testing and maintaining.Technical IndexRangeAccuracyPM2019A(Optional)PM2019S(Optional)AC Current30A/300A/3000A (3.0%+5) (3.0%+5)DC Voltage6V/60V/600V (1.0%+3)AC Voltage6V/60V/600V (1.2%+3)Resistance6k/60k/600k/6M (1.0%+3)Frequency40Hz-1kHz (1.0%+2)20Hz-1kHz (1.0%+2)SpecificationOptional ModelPM2019APM2019SBrandPEAKMETERDisplay6000 counts6000 countsData HoldYesYesLightingYesYesBlacklightYesYesTrue RMSNOYesBattery3pcs x 1.5V AAABattery(NOT included)Clamp Diameter75mm/3inchSize (Approx.)16.5*11.3*2.5cm/6.5*4.4*1inch(as picture)Weight (Approx.)340g/12oz422g/14.9ozOptional ModelPackage ListPM2019A1 x Flexible Clamp Meter1 x User ManualPM2019S1 x Flexible Clamp Meter1 x User Manual2 x Test ProbeNote:Only things package included, no other stuff.