Portable Power Sources Testers -- The second generation UT658 series USB testers can inspect USB chargers, portable power sources, data cables and other electronics charging devices

 Protect Charging Equipment -- Monitor charging efficiency at any time to protect charging equipment. voltage and current overload detection. Material: ABS

 UT658 Series USB Testers -- UT658 measures output voltage, current, energy, capacitance, circuit equivalent resistance, D + and D-voltage of USB data cable, and more

 Low Ambient Lighting Visibility -- This series is designed to be accurate, reliable, stable, and portable. Clear visibility in environments with low ambient lighting

 Great Engineering Testing Tools -- They are great tools for applications such as production verification, engineering testing, and DIYers