Review on 🔬 Hanna Instruments Artificial Refractometer Measurement by Michael Boyce

I have read many reviews about this refractometer. I don't understand why people are dissatisfied there. They just never bothered about the usual optics, especially when it lies in all dimensions. Hanna is the best thing that has ever happened to us. We figured it out very quickly, put in the battery, immediately calibrated with pure osmosis and immediately measured the water from the aquarium. Everything is clear and simple. We are very happy! Happy husband in the photo! )))) Thank you to the seller! The devices work perfectly, everything is well packed. Delivery 3 days from Texas to Moscow (Russia) - just a treat! Our packages in Russia do not always arrive that quickly.