MX18 Multimeter USB Meter Tester Digital Power Voltage Current Detector for Power Bank Charger Features: 1. No need for profeional wiring, abandon tedious operations, as long as plug the USB port, you can detect the USB power charging status, voltage, current, capacity and other indicators at a glance. 2. Input mAH to the 9 sets of charging equipment to save when power off, which is convenient for checking and detecting whether the charging equipment capacitance is false. 3. With power-off storage function, when the power bank is powered off, the capacity and energy data can be stored for subsequent viewing and the capacity and energy detection of the mobile power bank. Specification: Voltage: DC 4-30V Current: 0-5.1A mAh: 0-999999mAh mWh: 0-999999mWh Timing: 0-99 Hours Power: 0-150W Charging Internal Resistance: 0-999.9 Grouping: 1-9 Groups Internal Temperature: 0-80C D Positive Voltage: 0-10V D Negative Voltage: 0-10V Support Fast Charge: QC2.0 &QC3.0 Color: White, Black Size: 56.6 X 24.7 X 11.2mm/2.23 X 0.97 X 0.44" Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Package Include 1 X USB Meter Tester