LCD USB Detector Voltage Current Meter Power Battery Capacity Tester Meter Mobile Power Detector Battery Test Voltmeter Ammeter Features: This is the mini USB meter. It can clearly display all the data. Can easily measure the USB ( PC USB, cell phone charger, car charger , mobile power , etc. ) port and device operating current and the output voltage charge-discharge capacity, performance, and judge the performance of the charging cable charging equipment, this tester can meet the requirements ! Fit to factories, laboratories and personal use, wide range and Easy to use, easy to take alone, no additional power supply, Plug and play. Description: DIY Supplies: Electric Display Type: Digital Only Code Accuracy class: Plus or minus 1% Operating temperature: normal Power Supply: AC Voltage: 4-20V+/-1% Current: 0-3A+/-1% Time: 0-99H Specifications: Model: KWS-V20 Material: Plastic Color: Blue Size: 59*23*13.5mm _x000D_