Features: This pen type digital meter is a small 3 3/4 bit true RMS automatic scanning digital instrument. According to the difference between voltage and resistance, operator do not need to turn the dial to select the function, because of its automatic identification measurement. The stable performance, high precision, high reliability, clear reading, overload protection function are achieved. And this meter charged by AAA 1.5V low battery. and with VA reverse display screen, screen reflection for easy response to various environmental issues, it is cherished by most people. Digital multimeter supports NCV non-contact voltage detection, and can distinguish the null line and the fire wire to avoid the risk of electric shock. Safe and reliable. This new type of meter also automaticaly identify Dc voltage, Ac voltage, resistance, continuity, without any selection,besides with the function manually switching to measure electric field induction and fireline discrimination. it will be an ideal tool for radio enthusiasts and families, thanks to its superior performance. The pen multimeter has an automatic shutdown function, which will automatically shut down if there is no operation for mins, lowe power consumption. Audible + light alarm make measurement more easy. Compact pen type design for convenient single hand use, easy to carry andoperate. It is very suitable for home, school, laboratory, factory and other applications. Note: A3005A does not include phase sequence test function. Specifications: Model: A3005A / A3005B (Optional) Type: Standard Configuration / High Configuration (Optional) Material: ABS Item Size: A3005A: 170.5 * 25.4mm / 6.71 * 1 inch A3005B: 183.5 * 29 * 24mm / 7.22 * 1.14 * 0..94 inch Item Weight: A3005A: 58g / 2.04oz A3005B: 60g / 2.12oz Package Size: 188 * 60 * 30mm / 7.4 * 2.36 * 1.18 inch Package Weight: A3005A Standard Configuration: 122g / 4.3oz A3005A High Configuration: 145g / 5.11oz A3005B Standard Configuration: 124g / 4.37oz A3005B High Configuration: 148g / 5.22oz Model A3005A A3005B AC Voltage