Hello Chris.
Thank you for your reply.The Sun MEA is a traditional tuning machine,most suited and appropriate for the type of cars I believe you encounter.There is no integrated gas aynalyser with this machine,although a 4 gas unit does sit on it's shelf but fails to calibrate sometimes,so it would go with the Tuner f.o.c.
In terms of age I would reckon it to be circa 2001 but is like new.If you google Sun mea 1200 you can pull up some images.My location is Peterborough Cambs.
Regards Trevor.