4000counts is a pocket 3 3/4 true effective value, pen type intelligent multimeter. It does not need to turn the dial to select the function. According to the difference of input voltage/resistance/

the instrument will automatically identify and measure. The machine has stable performance, high accuracy,

high reliability, clear reading and overload protection function. Driven by a AAA 1.5V battery,

the instrument uses a large screen LCD display with boost power supply. Even at the edge of a 0.8V low battery,

the backlight and the ultra-high brightness of the flashlight can be guaranteed. The meter is portable and is extremely popular with users.

This series of instruments can automatically identify DC voltage and AC voltage, resistance, without any switching, and can also manually switch to measure diodes,

Non-contact voltage measurement and zero-fire line measurement are excellent tools and meters, and are ideal tools for laboratories, factories, radio lovers and families.