One of my customers had a retrofit system fitted on there new fleet instead of having the manufacturers system fitted.

Reason being, the retro fit one worked with the customers RFID access fobs where as the manufactures system wouldn't.

The only thing they use the system for is to switch truck on & control training, they don't use any of the impact sensing or data reporting functions.

It would have been cheaper in long run to spec the manufacturers system & issue everyone with a additional keyfob. the amount of issues the retrofit one has caused us & cost the company has already proved that point.