Triplett 1401 Compact Digital NCV Multimeter Handheld measures AC/DC voltage, AC/DC current, diodes, continuity, batteries (1.5V and 9V), resistance, frequency, and temperature. The Triplett 1401 multimeter features an easy-to-read 5999 count display, TRMS, 52 measurement ranges, up to 600V voltage range, low battery indication, protection from overload, and more. The Triplett 1401 is a very feature packed unit great for security, home theater, electrical, HVAC, you name it. With over 52 measurement ranges and TRMS measurements, the Triplett 1401 is a truly capable multimeter.