Portable Refractometer

Thats the same one I got. I broke it recently though because of the "false RO/DI calibration" craze. The clear hinge snapped into pieces. I've got it for over three years.
 
They're surprisingly accurate.
I think Mike and Joe sell them at Aqua Addicts for a similar price.
 
I have it and it works good. Mine did fall out of calibration once somehow though but it was probably my error. Other than that it is a lot better than a hydrometer for sure.
 
I just bought the same one from marinedepot and like it alot no more swing arms.
 
I'm planning on a relatively big order from Fosters & Smith (if I can ever decide on a tank and its location). In the past I bought doggie stuff from them and was very happy. Though now I feel guilty in not giving the local shops my business. There's no level playing field between LFSs and online merchants and the deals on shipping and certain sale items are tough to pass up.

Anyone else feel guilty? :(
 
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