The instrument of this series is a small hand-held 3 3/4 digital clamp meter featuring stable，highly reliable and anti-drop performance. It is provided with a LCD display for clear reading. The circuit design takes LSI double integral A/D converter as its core under the protection of an overload protection circuit， making it a superior and handy instrument. It can be used to measure DC and AC voltge， DC current， resistance， diodes， capacitance， temperature and in-circuit continuity test. This digital clamp meter is provided with a LCD back light. Specially， it has a data hold function， auto/manaul ranging select function and working light which is easy to use.