VA82 5 1/2 Digital bench multimeter Key Features:2 different measurement functions: DCV/ACV, DCI/ACI, Ω2W/Ω4W, ... Measurement functionMeasurement parametersDC voltage, AC voltage, DC current, AC current,2-wire resistance, 4-wire resistance, frequency, period, continuity, diodeMathematic ... cycle: one yearOperating temperature & humidity:18°C-28°C,≤90%RH;When resistance range is 10M and 100M, ≤70%RHWarm ...