CAT IV MultiMeter and AC Voltage Detector with 8-piece Test Lead kit. The Extech EX505 Heavy Duty True RMS industrial Multimeter measures AC/DC Voltage (1000V) and Current (10A), Resistance (40Mohms), Capacitance (100 microFarads) , dual sensitivity Frequency (electric 1kHz/electronic 10MHz), and Type K Temperature (-4 to 1382 degrees F (-20 to 750 degrees C)) . It features a 4,000 count backlit LCD, 0.5% basic accuracy, Relative/Data Hold, and Auto Power off with disable.