BW Meter 9.0.3.0.1 can be downloaded from our software library for free. This tool was originally designed by Hexagon Web Tech. The size of the latest downloadable installer is 1.7 MB. The software is included in System Utilities.
From the developer:
BW Meter is a powerful bandwidth meter, monitor, traffic controller and firewall, which measures, displays and controls all traffic to/from your computer or on your network. Unlike other products, it can analyze the data packets ( where they come from, where they go, which port and protocol they use).
You may want to check out more software, such as Bandwidth Meter Pro, Meta.Numerics or Seed Solutions S Meter Lite, which might be related to BW Meter.