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Nice Product By Rob on 7/10/2016Rob would recommend this product to a friendQuality is very good and hardware is good quality as well. No problems with rust, so must be stainless nut and bolt.
Great Tool for PAR Readings By Jeff on 4/9/2016Jeff would recommend this product to a friendThis tool is awesome. I just wish the app was better. It would be nice if the app had aquarium views that you could record the different readings of where they are in the tank.