Maybe I'm being thick, but I don't understand what the issue is with this thing.
As far as I can see its main uses are to enable a standard ratchet drive to be used as a torque wrench, and to check the accuracy of an existing torque wrench that you suspect might be inaccurate.
In order to do that the adaptor needs to have been calibrated to a recognised standard to begin with (and if it isn't it's about as much use as a chocolate teapot anyway), and to be periodically recalibrated to the same standard, the period being dependent, presumably, on how much use it's had.
Where's the problem?
Seems like quite a nifty item bearing in mind the obvious limitation of its size restricting access in confined spaces and that its reading range isn't particularly wide, especially at the low end.
Good find, Rodders
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