As we know, there will be output current and voltage when electronic products working. But once the current and voltage in the condition of abnormal, then will damage electronic products. So, aware that the current and voltage data changes in important, and this, USB voltage tester can show you.
It is a USB charging current/voltage detector USB current and voltage tester. It can easily measure the USB port of the working current of the output voltage and device. USB voltage tester adopted a new generation of four and a half double integral type conversion IC, equipped with precision band gap reference source, accurate range and high precision, stable work, reliable performance, strong anti-interference ability, high temperature resistance. Can be used to measure the USB interface, mobile phone charger, USB products such as power supply or power consumption.
In the other side, expect to notice you to protect your electronic products, also can help you to change an appropriate connect port. For example, we usually carry out mobile power supply, we found the output of the power supply and voltage is not suitable for cell phones by USB voltage tester when we use a mobile power supply for charging the mobile phone, then you can change a suitable in time.like this, both can charge the battery safety, and can protect the mobile power and cell phone.
Even USB voltage tester is a very practical little issue, cabinet and easy to carry, no need to connect other power supply. Measurable USB powered equipment when empty, the load voltage, the USB terminal voltage and current at work. Current voltage loop shows, the use of simple and convenient and practical. You can judge if the charging in place or not by charging current, also can judge whether the output voltage of the charger correct.