KKmoon HYELEC MAS830B Multifunction Mini Digital Multimeter The instrument of this series is a small hand-held 3 1/2 digital multimeter featuring stable Highly reliable and anti-drop performance It is provided with a LCD display of 15 mm height 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.