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#20
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![]() you know you can't add another decimal there. the swing arm measures 1.023. If you wanted to extrapulate I would say your arrow looks more like 1.0236. at any rate your accuracy is only as good as your smallest measured value. so your swing arm has a accuracy of +/- 0.001
as with anything some are better than others, I got a refractometer from a fiah store and it reads 3 decimal places like the ones here, I picked one up some where else, paid a bit more money for it and it reads 4 decimal places. One note about floating glass type, the reading changes with changes in barometric pressure, and 3 different people will get 3 different readings off them due to the water meniscus and the angle they look at it. Oh and the break easy ![]() ![]() Steve
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