ITEM NAME:2X(Usb Digital Multifunction Voltmeter Ammeter Current Tester Capacity DeteE7Q5) 2X(Usb Digital Multifunction Voltmeter Ammeter Current Tester Capacity DeteE7Q5) 2X(The phone is fully charged to automatically turn off the output. No load 20 seconds automatically shut down output.It displays the voltage and current data mAH, timing, easy viewing.It can detect mobile power output mAH Measuring voltage and current: USB male plug 5V chargers, mobile phones and other equipment female insert, read current and voltage directly.MicroUSB line quality measurement: female plug mobile phones and other devices, first use the native male plug 5V chargers, remember that voltage, then MicroUSB cable into the bore in mind that the machine Micro-USB charger voltage from 5V, the smaller the space voltage MicroUSB cable quality is better Power-down save function:USB and MicroUSB port male double take power, can be detected MicroUSB line quality,Current sampling 50 milliohms, smaller loss,With precision current calibration, higher current accuracy (calibrated okay shipped) Battery capacity test:Use TP4056 and other linear charging circuit through this capacity to the table completely empty battery is fully charged to full capacity reading on the battery capacity, the use of this method can be measured charge capacity of the phone, the phone can even calculate the charging efficiency Mobile measuring power output capacity and efficiency: The first machine connected mobile power, mobile power turn on, long press the button until the volume of data to zero, into the phone and more mobile power charging until no power automatically shut down. Next displayed when you turn the unit capacity is the mobile power output mAH. Digital Display USB multi-function tester 3V-30V Mini Current Voltage Charger Capacity Tester USB Doctor power bank meter 1.the input / output current: 0A- 3A 2.input / output voltage: 3V-30V 3.the test capacity range: 0-99999 mA 4.accuracy: ± 1% 5.the test: voltag
