lsusb
If the software was accidentally deleted from your device, you can find mirrors from authorized retailers: OzSpy Security : Offers a Time Setup Driver Download for the AF-MQU350 model. KJB Security : Provides the MQ-U350 User Manual which includes setup instructions. Key Specifications to Remember mq-u350 software download
Yes. No download required. Just plug it in and use screen /dev/ttyUSB0 115200 . lsusb If the software was accidentally deleted from