The Faithfull Mini Clamp Meter is an ideal instrument for use in many laboratory, factory, warehouse and home applications. This compact electrical test tool combines a basic digital multimeter with a current sensor. The clamp can be used to measure current, and the probes are used to measure voltage. Features include a 3.1/2 digit LCD display and a data hold function that allows the present reading to be held on screen. Suitable for measuring AC/DC voltage, AC current, resistance and diodes. Supplied with batteries, test leads and user manual. Functions Voltage DC: 300V, Input Impedance: 9MΩ Voltage AC: 300V, Frequency Response: 40~400Hz Current AC: 20/200/400A, Frequency Range: 50~60Hz Resistance: 2000/200kΩ Diode Check: Resolution: 1mV, Open Circuit Voltage about 3V Continuity: Less than 30Ω Specification: Clamp Capacity: 25mm Max. Measurable Conduction: 25mm Power: 3 x 3V CR2032 batteries (supplied) Dimensions: 151 x 65 x 34mm Weight: approx. 125g (excluding battery)