Keweisi USB Voltage Current Meter Capacity Tester Doctor Mobile

This is the mini USB meter.It can measure voltage, current, power and capacity.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
Applications:Fit to factories, laboratories and personal use, wide range and Easy to use, easy to take alone, no additional power supply,Plug and play.Advantages: Plug it into any powered USB port and check that it is supplying the stated output voltage and current to keep all of your devices charging as efficiently as possible and that their batteries are still in good condition to avoid data loss.It adopts the OLED screen, it can clearly display all the data.And it display white color font, It forbid for being used for inductive load,eg: the load with motor and fan.it can be used digital products, eg: mobile phone,power bank,USB flash drive etc..The power analyser is also great for checking that USB wall chargers are working to their full potential too! Measures volts, Amps, time and capacity Convenient pocket sized unit Suitable for any USB socket
Specifications:Supplies: ElectricDisplay Type: Digital Only CodeAccuracy class: Plus or minus 1%Operating temperature: normalPower Supply: DC Voltage: 4-20V+/-1%Current: 0-3A+/-1%Time: 0-99H Specifications:Model: KWS-V20Material: PlasticColor: BlackSize: 59*23*13.5mm 
Package Includes:1 X Current Voltage Capacity Tester