The 300 series family of rugged digital clamp meters will perform electrical measurements in the most severe industrial applications for many years. Non-intrusive current measurements are made without interrupting the circuit, just clamp the jaws around the conductor. The 350B has a large 2.2 inch jaw opening to accommodate large conductors. The BK Precision 350B AC Clamp meter has a 3200 count LCD display with an analog bargraph and autoranging. Peak hold is included for current, voltage, frequency and resistance measurements