Looking for a cooling pressure tester .... ANYONE RECOMEND ONE

been looking at getting a cooling system pressure tester .
There are only so many things i can buy for my business each month and this month it's cooling testers

Seen many different types on ebay has anyone bought one ?

Want one with all the different types of caps

We use a fair bit of Sealey products in our workshop but think something like this would be ideal for you?

http://www.sealey.co.uk/PLPageBuilder.asp?gotonode=ViewProduct&method=mViewProduct&productid=10416&productdescription=radiator&productcode=&category=6&catgroup=137&catmicrogroup=&analysiscode=&requiredresults=16

Yeah that the kind of thing im thinking ov ..

highest bidder on a snap-on one at the mo

Those sealey kits are quite expensive ... the ones on ebay look identical other than they are around 60ish ...