[New upgrade]: The product supports two-way insertion detection, increases the current direction indication direction, 1.54 inch large LCD screen, super clear resolution 240×240, 4 operation buttons, 5 interfaces, the page before and after the upgrade is more convenient to switch. Plugs with gold-plated USB contacts have a strong coating that protects against scratches, stains and damage [Wide application range]: Can measure various USB chargers /PC/ laptop/desktop computer/mobile phone/charger/charger/discharge load/car charger/cable. Support Type-C interface full digital compatible PD protocol/Qualcomm QC3.0/4.0 protocol one table compatible with multiple protocols, fast charge support PD QC2.0 QC3.0/4.0 MTK and other protocols, support USB2.0 500M, USB-A support USB3.0, can reach 5G [New reminder function]: temperature alarm: more than 45, the temperature display flashes; Voltage alarm: less than 3.8V or more than 30V, the voltage display flashes; Current a