Features: 1. Current, voltage, power, electrical energy, capacity, timing and other quick identification and other parameters, one screen display multiple parameters. 2.Adopt 0.77 inch OLED HD display, make your vision brighter at a glance, with 12A high current terminal, make the product more stable. 3.CNC metal shell dustproof and drop-proof, two kinds of display page, more convenient to watch, so that the function is more strengthened. 4. Full interface compatibility, two-way current test function, real-time charging power detection, support fast charging test. 5. You can detect the charging status of the electrical appliances in real time, real-time monitoring of the charging voltage and current and other parameters of information at a glance. Voltage 4-30V Current 0-12A Timing 0-99 hours Power 0-360W Capacity 0-99999MAH Current direction indicator Record the highest power of a single operation Record the maximum single current Record the highest single voltage Electric energy 0-99999WH CPU temperature Note: Due to different production batches, there may be slight differences in products. Colour: Photo Color Material: Plastic Package Contents: 1*phone charging tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.