Testo aren't that expensive, not £1000, unless you want all the data logging software and all sorts of extraneous stuff. These were the ones I was looking at
http://shop.testodirect.co.uk/oozicg...ion/c-1-69-90/
Still interested in the 557 myself, but only found USA online sellers. I like the sensors, the 4 way manifold with 3/8" vac. And like I said, my manifolds aren't that great anymore. so a 557 for $500 or a digicool plus a 4 way manifold for $900 are my choices.
So I'm still considering looking at a testo 557 if I can find anyone in the UK selling them at a decent price. USA sellers found but postage is triple the cost from there compared to the UK, so searching at the UK mainly, and I haven't found anyone yet. It goes without saying that digicool is USA only, so add high high postage to the $900 for the digital gauges and then again for the manifold (cause there's nothing here cheap anyway, even pricey stuff isn't that good as what I could get from overseas - so pricey and average quality, or pricey and good, but from overseas with a high postage cost if from USA)