The Extech EX363 is a Compact HVAC True RMS Multimeter with a Built in Non Contact Voltage Detector. Featuring highly accurate True RMS measurements, LoZ for the prevention of false readings caused by ghost voltages, .5% basic accuracy, a 1000V AC/DC volt range, resistance up to 40Mohm, continuity beeper with visual alert, smart data hold, peak hold, auto power off with disable, relative mode for capacitance zero and offset adjustment. Additionally, the EX363 excels in HVAC flame rod measurements with a µA function, as well as Type K Temperature measurements from -40 to 742°F (-40 to 394°C) and Frequency and Capacitance measurements.