10 Best Drok Light Meters of July 2021

  1. Product Highlights
    • Built-in more safety: each usb meter tester has been built-in circuit with containing cw3002d chip for accelerating large current fast charging. plus the interior smart system is designed to detect safety. the multimeter tester also supports qc 2.0/3.0 high voltage test, with the function of cutting off automatically when it's fully charged, to protect your valuable dev...
    • Wide testing range & simple operation:input/output voltage: dc3-30v, current range: 0-5.1a. this portable usb tester is easy to carry and enables you to put it in your bag or your pocket whenever you go, along with the symmetrical and reversible connector for your simply operation.
    • Multifunctional usb tester: usb meter tester is mainly used to detect usb charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. meanwhile multimeter usb detector can be applied to the power capacity storage and over/low voltage-current protection. it allows you to find the charging problem of the usb cables, wall chargers, ...
    • Premium lcd display: crafted from high-grade lcd monitor with low power consumption feature, bright and clear enough to monitor the parameters on the screen. comes with three various display modes for your choosing. ideally be broadly applicable to test capacity and electric energy of power bank; test the maximum output current of the charger; and test charging speed an...
    • Package: 1x multimeter usb tester. 100% satisfaction warranty: we stand behind all of our products 100%.every item includes one year hassle-free guarantee with considerate customer service. eversame always bear in mind that your satisfaction is our priority. for any reason you are unsatisfied with our product at any time, just feel free contact support for exchange or r...
  2. Product Highlights
    • Safety guard: built in protective electronic switch element for detecting safety, it will cut off output automatically and protect your appliance from damaging; it will store data when power off suddenly. voltage can't exceed 30v, current can't exceed 5.1a.
    • Six setting interfaces: ampere calibration, voltage calibration, high voltage protection threshold, low voltage protection threshold, over current protection threshold and capacity compensation coefficient; press the key cyclically to review them.
    • Multifunction:coowoo smart digital usb meter can be used to test voltage, ampere, capacity, electric energy, power, recording charging time etc. with 0.96" lcd display, making it easy to monitor the charge voltage and current of your digital usb devices, while ensuring the optimal charge rate. simultaneously displaying of amp and voltage in real-time.
    • Testing function: usb port is dedicated for both data sync and battery charging purpose, which has built-in circuit with containing cw3002d chip for accelerating large current fast charging. compatible with qc 2.0/3.0 high voltage test; testing capacity and electric energy of mobile power bank; testing the maximum output current of the charger; testing charging speed an...
    • Satisfaction guarantee: 100% risk-free satisfaction guarantee. we offer you 100% hassle-free satisfaction guarantee to let you buy with confidence. for any reason you are unsatisfied with our product at any time, just feel free contact support for exchange or refund. our customer service team are here and ready to assist you with any questions or concerns you may have b...
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