Triplett 1201 Compact Digital Multimeter Handheld measures AC/DC voltage, DC current, diodes, continuity, batteries (1.5V and 9V), resistance, and temperature. The Triplett 1201 multimeter features an easy-to-read 1999 count display, 21 measurement ranges, up to 600V voltage range, low battery indication, protection from overload, and more. The Triplett 1201 Compact Digital Multimeter Handheld is a very feature packed unit great for security, home theater, electrical, HVAC, you name it. With over 21 measurement ranges and a voltage range up to 600V, the Triplett 1201 is a truly capable mutlimeter.