... Internet.For ADSL lineDigital multi-meter (DMM) test Test AC/DC voltage, loop resistance, insulation resistance, capacitance, etc.Estimate the ... , Maximum transmission distance 6.5KmDigital multi-meter: DC voltage: -400V~+400V, accuracy: ±5%± 2V AC voltage: 0~290V, accuracy: ±5% ±2V ... supply1) Special power adapter Input: AC220V 50Hz Output: DC 9V 1.2A2) Built-in rechargeable battery 4000mAh 7. ...