new? leveling system
Has anyone ever used or seen in use either the Stanley Compulevel or Ziplevel. I got one of those contractor pack of post cards and this really caught my eye. it boasts of 1/8″ accuracy in a 200′ range and 40′ of elevation. It is truley a one man operation and has virtually no set up time. It is a precision altimeter and retails around $800.00.
From the website:
It works much like an aircraft altimeter yet it's 1000 times more precise and completely immune from barometric pressure changes.
Like many, their website is mostly marketing speak rather than good technical explanations. I don't understand how something that works "like an aircraft altimeter", with the aircraft altimeters I am familiar with functioning through barometric pressure changes with altitude, could then be completely immune from barometric pressure changes. I assume it has to do with exchanging pressure information over the "cord", which means that you would always need to be tethered to the reference point. But what if you were measuring a point on the leeward side of a building during windy conditions where you might have some slight negative pressure from the wind over and around the building?
Thanks for posting this, it looks interesting, I found a few things, linked below. From the description it looks to me like it probably works as described - anyone here have any experience? I'm looking for just this kind of device actually.
Froogle listing of 3 resellers:
Found a few other interesting items:WatrLevel:
http://watrlevel.com/competitors.htmand a list of leveling devices with commentary from the watrlevel people:http://watrlevel.com/competitors.htm