USB to Serial Adapters
Robust features. Value Price. 1-16 ports. RS-232, RS-422, RS-485
www.quatech.com

Bluetooth Serial Modules
Bluetooth UART/RS232 serial modules Fully qualified OEM solutions.
www.wirelessfutures.co.uk

RS-232 interface info.
RS-232 info, specification, cables controllers, soft, USB converters.
www.dataacquisitionweb.com

Serial Bluetooth
Serial RS-232 adapters/99€/129USD Easy to use, Class 1, 100m
www.datasoft.se