The multimeter is composed of three main parts: the meter head, the measuring circuit and the change-over switch. Multimeter is the most basic tool in the field of electronic testing, and it is also a widely used testing instrument.
roller chains (ISO & ANSI) is known for its high strength and persistent fatigue durability. The sizes fully compliy with ANSI standard. It can be assembled into single-row, double and many rows applying to the transmission power and different configurati