... DMM, Liquid crystal display. .It can be used to measure DC and AC Voltage, DC and AC current ·4 ... type DMM, Liquid crystal display.·It can be used to measure DC and AC Voltage, DC and AC current, Resistance ... Diodes and Continuity.·The max. voltage measuring can up to 1000V DC or AC peak value. Resolution can be ... 10u V, and current measuring can up to 20A, it also has the function of polarity auto ...