ELIKE 328D 600A AC/DC Current Auto-Ranging 3999 Digital Clamp On Meter & Multimeter with NCV,Diode,Continuity,Temperature ,Frequency and Capacitance Tester It is an all-in-one clamp-on meter with smooth dial can test AC/DC current The meter's non-contact voltage(NCV)detector senses AC voltage without contacting with circuit The clamp has two jaws with strong spring can measure current without interrupting the circuit The meter automatically turns off after 10 minutes of non-use to conserve battery life and it has wa It is designed according to International Electrotechnical Commission (IEC) safety standard 61010