Thanks, Gorge, I know this one. It is $250, measured only up to 2T and has a probe that is too large to be useful.
The company that I really like is http://www.gaussmeter.co.uk/index.shtml. Their gaussmeters have range up to 3T and their smaller probes are 0.6mm. This is exactly what I need. The only problem is that their cheaper devise is 360 UK pounds and the handheld devise is 500 UK pounds. (All direct prices when I spoke with them, the dealer prices 1.5 time higher) It is perhaps not expansive from a universal perspective but it is too much money for my tasks. I know there are a lot of Brits people at this site and perhaps some one would point out what could I get them even cheaper.
There is one alternative. All those sexy gaussmeters are expensive and snobby become they state a reference calibration and certified results, partially in the milli- and micro- gauss modes. In my care I will be dealing with kilogausses and the certification of the result is not really necessary for me. I can easily calibrate a gaussmeter form a fully magnetized driver of know performance and then I care only about a delta but not about the absolute values. So, I wonder if the miniature Hall probes are available then to assemble a gaussmeters that would run into my voltmeter is very-very simple tasks. It would literally cost under $10 and will take 3-4 parts. I’m contemplating now if I need to pay a few hundred dollars. If I but an average couple hundred bucks gaussmeters then I still to need to open it up, replace the probe to a smaller one. Perhaps the same a put of time will take to make a new on from scratch…
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche