ITEM NAME:KCX-017USB Detector Power Bank Accurate High Quality Voltage/Current Tester Description: 100% brand new and high quality. Displays Current (Amps), voltage and capacity (19,999 mah) Low line loss, Has an accuracy better Perfect for testing how fast a USB cable or USB power adapter charger is actually charging Store charging data in memory. Flashes to alert of low or high voltage issues Test using a USB charger, battery power bank or Micro USB Cable. Test your or Android phone &;nbsp; Specifications: Type: Voltage/Current Tester Color: white Size: 5.8*2.7*1.8cm(L*W*T) Cable length: 20cm(include USB) Input voltage: 4-30V Voltage Resolution: 0.01V Tester current: 0-3A Capacity range: 0-19999mAH : Â ±1% Line loss: about 0.1â„ ¦ &;nbsp; Package Included: 1 x Voltage/Current Tester &;nbsp; Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement..Tester current: 0-3A. Test your or Android phone. Low line loss, Has an accuracy better. Capacity range: 0-19999mAH. Due to the light and screen difference, the item's color may be slightly different from the pictures.