This tool is pen-type intelligent multimeter, with the large display screen and multifunctions such as direct current and AC voltage measurement, voice broadcast, resistance and capacitance measurement, also with the flashlight and backlight. If you need it, you can have a try. 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 function which the kkm99 not has. The kkm99 with positive display screen. The kkm100 has the color screen, you can choose the type you like. it also has the phase sequence measurement function. Wide application: It is a tool meter with fine performance, an utility tool for laboratories, factories, radio enthusiasts and families. With the powerful measurement functions: It can be used for DCand AC voltage measurement, resistance, capacitance, temperature, diode and bu-zzer measurement, also with the fire distinguish function. With the flashlight and backlight for you to use, so you can use this tool even in the dark give you a better using experience. Voice broadcast function: With the auto measurement and auto identification function, also with the voice broadcast function, which is intelligent and convenient.ONLY KKM100-ENG Specifications: Type: KKM99, KKM100 ,KKM100-ENG(Optional) Material: ABS Color: black Power: 1 * AAA battery (NOT included) Direct current voltage: 0.8~1000V AC voltage: 0.8~700V Resistance: 0.1~60M Capacitance: 10nF~60mF Temperature: -20~50(0~122 Diode: 3.0V Buzzer: 0.1~50 Package size: 171 * 21 * 21mm / 6.7 * 0.8 * 0.8in Package weight: 80g / 2.8ounce Colors: only KKM100 and KKM100-ENG Phase sequence: only KKM100 and KKM100-ENG Packing list: 1 * Multimeter with Pen Line (optional) 1 * User Manual