Osmond LCD Micro USB Charger Battery Capacity Tester DC 4-30V LCD USB Detector Power Bank Charger Indicator

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  • 4. With current calibration function, higher current accuracy
  • 1. Simultaneous display of voltage and current mAH data, easy to view can detect mobile power output mAH
  • 3. Higher , current parameters not jump basically current sampling 25 mOhm loss smaller
  • 5. Safe charging, real-time monitoring and control of your charging data

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