Digital Frequency Meter. Hight Accuracy Multimeter. RS-232 Interface. Ture RMS. CE certification Digital Frequency Meter :◊ Secondary injection molding ◊ Insulating performance reaching 1000V CATIII ***Basic Functions: ◊ AC/DC Voltage: 50m/500m/5/50/500/1000V ±0.5%◊ DC Voltage: 50m/500m/5/50/500/1000V ±0.03%◊ AC/DC Current: 500u/5000u/50m/500m/5A/10A ± 0.75%◊ DC Current: 500u/5000u/50m/500m/5A/ ...