Worth the money , tested 6 zones of under floor heating and 2 zones of traditional heating pipework and radiators on a new installation in a large house . Tested to 2 bar then 10 bar . Several leaks identified during these tests . The damage that just one of these leaks caused would have cost a lot more than the cost of this pressure tester . My only criticism is the pressure garage does not sit a 0 but I guess this could
Be changed for a better one . I’d have no problem recommending this tester to others
Patrick 
