This tool is pen-type intelligent multimeter, according to the input voltage / resistance / difference, the meter will automatically identify and measure, the performance of this machine stable, high precision, high reliability, clear reading, overload protections function, come on and try it, it will not let you down. Features: It is small in size and easy to carry, you can even put it in to your pocket to carry it to anywhere you want to use it. It not only the multimeter, but also the voltage test pens, for the kkm100 type, it also has the phase sequence measurement and frequency measurement function which the kkm99 not has. The kkm99 with positive display screen, and the kkm100 has the color screen, you can choose the type you like. Wide application: It is a tool meter with fine performance, an utility tool for laboratories, factories, radio enthusiasts and families. This series of meters can automatically identify direct current voltage, AC voltage, resistance, without any switching, and can also be manually switched to measure capacitance, diode, continuity test, non-contact voltage measurement, zero-live line measurement, and other parameters. Automatic power off function, without any operate in 5 minutes, it will automatic shutdown. Specifications: Material: ABS Color: black Type: kkm99, kkm100 (otional) Power: 1 * AAA battery (not included) Direct current voltage: 0.8~1000V AC voltage: 0.8~700V Resistance: 0.1~60M Capacitance: 10nF~60mF Frequency: 1Hz~10MHz (Only KKMoon100) Temperature: -20~50(0~122 Diode: 3.0V Buzzer: 0.5~5 Colors: only kkm100 Phase sequence: only kkm100 Package size: 171 * 21 * 21mm / 6.7 * 0.8 * 0.8in Package weight: 80g / 2.8ounce Packing list: 1 * Multimeter with Pen Line (optional) 1 * User Manual