DC Voltage Display: Two wire connection, with reverse polarity protection, ideal voltage readout display for DIY.. Two-wire voltage meter display measurement range: DC 2.5-30V(Red), 2.6-30V(Yellow/Green), 3.2-30V(Blue). Small in size and light in weight,quite easy and convenient to carry out. Max. Input Voltage:DC 30V(Higher than this voltage is has a risk of overburning). The precision automatic adjustment ,when less than 10V accurate to 0.01V, more than 10V accurate to 0.1V.
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Diymore 4 in 1 USB 3.0 and USB-C to SD Card Reader Adapter, High-Speed Data Transfer for MacBook Pro, iPad Pro, Samsung Notebook, Dell XPS