This tester is a high-reliability, high-safety USB voltage andcurrent detection meter and a communication terminal quick recharging trigger. It has a 2.0-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. Use external 16-bit ADC, PD protocol physical chip. It can be used to measure the power supplys or power consumption of products such as USB interfaces, mobilephone chargers, and U disks. It can be used to measure the recharging power of mobilephones and the input and output of mobilephone power supplies. It also can be used to test the quick recharging protocol of chargers. Features: It has a 2.0-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. 0.0001 low resolution, real-time detection of subtle changes in voltage, current and power while recharging. Support automatic protocol detection like PD2.0 and 3.0, QC2.0 and 3.0, QC4, SCP, AFC, PE, DASH VOOC, superVOOC, etc. Four functions curve display: Real-time voltage and current curve for view recharging curve changes in real time Abnormal recharging is found immediately. The offline curve recording support up to 9 hours offline voltage and current curve recording, show up during recharging. D+D1 voltge curve can show the recharging protocols changes and master in time. The high-speed power supplys ripple measurement curve can show you the chargers ripple measurement. PD E-MARKER CABLE DETECTION function makes it read data information of line with E-Marker chip, and DASH CABLE DETECTION function makes it read DASH cable chip related data, also support cable internal resistance measurement. Support 10 sets of recharging and discharge energy data records. Built-in battery capacity calculation formula. The battery capacity can be quickly calculated from the recorded data. The BT Version: The BT version allows you to synchronous data to your mobilephone and has the APP overvoltage and overcurrent alarm function. (Only BT version has this function.) Specifications: Material: metal Type: without BT function, with BT function (optional) Monitor voltage: Ranges: 428V Resolution: 0.00001V Accuracy: (0.2+2) Monitor current: Ranges: 0~7A Resolution: 0.00001A Accuracy: (0.5+2) Monitor Power: Ranges: 0~120W Resolution: 0.00001W Accuracy: (0.5+2) Load equivalent internal resistance: Ranges: 09999.9 Resolution: 0.0001 Accuracy: (0.5+2) D+/D- voltage: Ranges: 0~3.3V Resolution: 0.001V Accuracy: (1.0%+2) Capacity: Ranges: 09999.99Ah Resolution: 0.00001Ah Energy used: Ranges: 09999.99Wh Resolution: 0.00001Wh Cable resistance: Ranges: 09999.9 Resolution: 0.0001 Item size: 82 * 42 * 12mm / 3.2 * 1.7 * 0.5in Item weight: Without BT: 43.1g / 1.5ounce With BT: 44.3g / 1.6ounce Package size: 115 * 85 * 20mm / 4.5 * 3.3 * 0.8in Package weight: Without BT: 90.1g / 3.2ounce With BT: 91.7g / 3.2ounce Packing List: 1 * Tester