<p>1. Current, voltage, power, power, capacity, capacity, resistance, timing time, capacity group number, Celsius, Fahrenheit, quick recognition, and many other parameters, a screen display of a of parameters.</p> <p>2. It can detect the charging status of the electrical appliances in real-time, and monitor the charging voltage and current in real-time and other parameters information at a glance.</p> <p>3. Display on\/off function: through the multifunctional key short press switch interface to the rest screen interface for the off display, but also can be normal to the device charging night charging.</p> <p>4. easy to test a of chargers, data cables, rechargeable batteries, , cell phones, and so on.</p> <p>5. A of fast charging protocols automatically detect, fast charging recognition detection covers almost all fast charging protocols, and can meet the needs of all types of cell phone users.</p> <p>Voltage measurement range: DC 4.5-36V</p> <p>Current measurement range: 0-5A\/0-8A</p> <p>Capacity totalization range: 0-99999mAh</p> <p>Power Accumulation Range: 0-99999mWh</p> <p>Power measurement range: 0-150W</p> <p>Impedance measurement range: 1-999.9ohm</p> <p>Temperature measurement range: 0-80</p> <p>Operating Temperature: -10-60</p> <p>Working humidity: 10-80%RH (no condensation)</p> <p>Working air pressure: 80-106kPa</p> <p>Multi-function button operation instructions:</p> <p>Short press mode button</p> <p>1. is to switch the screen</p> <p>2. Quickly triple-tap the switch button to reset the power to zero (mWh) and the timing reset to zero the current group (0.00)</p> <p>3. Long press the on\/off button for 2 seconds to change the accumulated data storage group number (NO.X).</p> <p>Due to different batches, there may be differences in product appearance and printed text, which will not affect use</p> <p>Colour:As Shown</p> <p>Material:ABS</p> <p>Package Contents:</p> <p>1 x volt-ammeter(USB)</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>