For marketing purpose, sometimes we use CA100F for item code for Speed Limiter for Ethiopia, sometimes we use TS-CA100F and sometimes we use YTWL_CA100F which is actually formal item code registered in Aurthorization letters, test reports .etc.
So there's no difference between them actually while just some are marketing code, and some are company code.
When we make authorization letters for our clients, we will use YTWL_CA100F as it's the same code in test reports, CE, ROHS for example. YTWL_CA100F also shows on the shell of the Speed Limiter according to standard of Ethiopian government about this product.
As well, the website may vary as well for marketing purpose, and it has nothing to do with a specific product.
For your reference.