Extech EX830 True RMS 1000 Amp AC/DC Clamp Meter with Infrared Thermometer Item is a Class II laser product, 1mW power output. Built-in IR thermometer measures surface temperature from -58 to 518-degrees Fahrenheit (-50- to 270-degrees Celsius Measures AC and DC current up to 1000A with maximum resolution of 0.1A True RMS voltage and current readings AC/DC voltage, resistance, type K thermometer, capacitance, and frequency functions Peak Hold