https://yinuoflowmeter.com/
Shanghai Yinuo Instrument Co. Ltd. PD meter , ultrasonic flowmeter , measurement instruments , mass...
Shanghai Yinuo Instrument Co. Ltd
co ltdpd meter
https://www.accupd.com/
AccuPD - PD Meter - 39 Dollar Glasses
Measure you pupillary distance.
pd meter39dollarglasses
https://www.startech.com/en-ie/cables/usbc-pwrtester
USB-C Power Tester, Digital Multimeter, Bi-Directional Voltage and Current Meter, Up to 240W PD...
USB-C Power Tester, Digital Multimeter, Bi-Directional Voltage and Current Meter, Up to 240W PD EPR, Portable USB-C Cable and Port Power Meter Tester