VisionTechShop MVS1 Heavy Duty Shipping Postal Scale, Lb/Kg Switchable, Capacity 165lb x 0.1lb / 75kg x 0.05kg Readability, Battery Operated, Power Adapter Included, Portable Scale for Warehouse

For starters, this is a USB client device, but it has a USB host port (USB-A). This is a violation of the USB specification and requires a non-standard USB-A to USB-A cable.After installing the driver, it shows a serial port, and that receives data for a bit. However, it stops transmitting after a minute or so, and unplugging and replugging causes a BSOD that points to CH341S64.SYS.Note: Results were varied. Windows displayed a Device Descriptor Request Failed error on a different computer.

Solid build. Legs can be adjusted to provide level placement. USB interface, documented protocol, configuration settings and calibration procedure. Documentation states that there are 3 model variants 77, 165 and 440 lb, but 77 and 440 lb versions seems are not available for purchase it is unclear if these are physically different configurations or just different calibration setups. Documentation can be downloaded from manufacture's web site.