A multimeter is a tool that is used to measure electrical properties such as current, voltage, resistance, and frequency. It is a very useful tool in a physics classroom studying electrical circuits. This is a digital multimeter with a 3.5 digit LCD display, 9 volt battery and instructions. Range AC 200V; 750V, DC Current 2mA, 20mA, 200mA 0 to 10A. DC Voltage 200mV, 2V, 200V, 1,000V. Resistance 200 ohm