OPTAC is the Tachograph Analysis range from Stoneridge. We have an analysis solution to suit you, no matter your fleet size or type of organisation. OPTAC3: a full analysis solution for analogue and digital tachographs. Find out more... OPTAC3 Free Trial: We know that choosing the right Tachograph Analysis system is a tricky decision. So to make it easier, why not sign up for a 30 day free trial and find out the savings and efficiency that OPTAC3 can bring to your business. OPTAC Fleet Viewer: simple data storage and viewing for digital tachographs. Find out more... We can also provide you with download tools and other tachograph analysis accessories. Prices exclude VAT (17.5%) and P&P (£5.00)