Radiator Pressure Tester

[eliaskok]

Has anyone ever tried this radiator pressure tester from ebay?

Here is the link:

http://www.ebay.co.uk/itm/15-PCS-Cooling-System-Ra...

[imagineifyeswill]

Havent tried that particular model but its just the same idea as all the other cooling system testers that have been commonly used by the motor trade for a least the last 50 years.