The meter is handheld Digital Multimeter for measuring DC and AC Voltage, DC Current, Resistance, Diode and Transistor with battery operated. Display: Blue Backlight LCD, 1999 counts, updates 2-3/sec Measuring method: Dual-slope integration A/D Converter Accurate Multimeter Mastech Green Digital Multimeter is designed to be used in your household and other working spaces. You can easily rely on its accuracy and count on it for its readings. This helps you keep a check on the usage and voltage for everyday use. This product totally defines what the brand stands for. It is an amalgamation of the right kind of engineering and designing at the same time.