http://www.airconcern.co.uk/extech-ex710-800a-clamp-meter-p-434.html
AC Current Clamp Meter
Features
MultiMeter functions include AC Current, AC/DC Voltage, Resistance, Frequency, Capacitance, Diode, and Continuity
Peak function captures inrush currents and voltage transients
1.2" (30mm) circular jaw opening for large cables (500MCM)
Features include Data Hold, Auto power off
Double molded housing and white LED display backlighting
Complete with test leads, 9V battery and belt holster
آی-ویدئو