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    Re: AH Level?
    From: Peter Monta
    Date: 2020 Aug 11, 22:21 -0700
    Hi Noell,

    Thanks for the pointer to the eBay level vials.  I've ordered a couple.  The ones I got some time back are from a UK supplier, caterpillar_red:


    They're more expensive, $14 each, with another $14 for shipping to the USA, but they might be of interest for those wanting new vials rather than new old stock.

    The same supplier has 3-arcsecond vials for $23.  That would seem to be a much-lower-cost alternative to the Starrett 199Z vials (at ~8 arcsecond), for applications that need the extra sensitivity, say for a striding level on a theodolite.  It's probably too much sensitivity for an artificial horizon.

    Cheers,
    Peter

       
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