DANOPLUS Honey Moisture 58~90% Brix Refractometer with ATC, Handheld High Measuring Range Sugar Content, Honey, Jelly, Jam and Syrup

I got this specifically to measure water % in my newly harvested honey. It arrived with everything you need incl. a very simple user manual briefly explaining how to use it and how to calibrate it. Mine arrived already calibrated, which you of course do not know until you have checked the calibration first but I think they are all calibrated from the factory so unless they get knocked about during transit they should work straight out of the box.It is a simple to use instrument. Put a thin layer of honey evenly covering the oblong panel. Press the clear plastic flap over and press it firmly onto the honey. Point the instrument towards bright daylight, or a lightbulb, and take the reading through the eyepiece. If needed focus the ring on the eyepiece until the scale is in focus for your eyesight. Clean off the honey with a clean damp cloth and dry with a clean tea towel.It seems to be a fairly well made instrument but not a heavy duty instrument, so it should be handled with care and stored in the included case to avoid damage when not in use.NOTE: I am not aware if it can be used to measure water % in set honey, or granulated honey, but suspect that the crystals might throw of the accuracy.