This Extech ETK30 electrical test kit is assembled to provide all the electrical testing needs for installation and repair of electrical systems and HVAC equipment. The EX205T is a TrueRMS Digital Multimeter that auto ranges, has a 2000 count large LCD display, low current capability with resolution to 0.1µA, Max Hold, Data Hold, Auto power off functions and has a CAT III 600V safety rating. The kit also includes the MA430, a 400 Amp AC Clamp Meter + NCV with 6 functions including AC Current, AC/DC Voltage, Resistance, Diode and Continuity. The MA430 also has a 1.2 in. jaw size for conductors up to 350MCM, a backlit display, Data Hold, Auto Power Off and Low Battery indication.