With voltage gear and mode power-off memory function, it can also accurately display the current voltage value and load current value. This small device can support PD3.1/3.0 and is compatible with PD2.0 protocol. Qualcomm OC3.0/2.0, supports / fast charging protocol, etc.. By sending the fast charging protocol to the fast charging protocol Chargers or power and other equipment can induce 5V/9V/12V/15V/20V/28V fast charging The voltage comes out for various aging and testing, as well as quality identification, computer and current power identification. The supported protocol fast charging voltage is as follows: Support PD3.1: 5V, 9V, 12V, 15V, 20V, 28V Supports PD protocol: 5V, 9V 12V 15V, 20V Supports QC protocols: 5V, 9V, 12V, 20V Supports protocol: 5V, 9V Supports protocol: 5V, 9V, 12V High-power aging PD power supply and QC power supply, PD protocol triggering can induce 5V/9V/12V/15/20V/28V Six fast charging voltages, the QC protocol trigger can induce four fast charging voltages of 5V/9V/12V/20V for various Aging and testing and quality identification. Can also be used for aging Data detection can allow the charger to be used with high voltage for a long time by measuring the current and voltage to detect the stability of the charger. Note: Due to different production batches, there may be slight differences in products. Colour:Photo Color Material:PCB Package Contents: 1 x PQ31 voltage trigge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.