Portable Refractometer 0-100 ppt salinity and 1.000-1.070 specific gravity
easy and accurate
Very easy to use , accurate & doesnt have to be submerged in the tank like a hydrometer
September 3, 2014
I was a little hesitant about this at first, but it arrived skillfully packed and has been a great asset to our aquarium and our hermit crabs (who require brackish water) ever since. As long as it is used properly, it is a product to rival those we have used in marine laboratories.
April 5, 2014
I don't understand all the bad reviews about hard to read. Eye piece rotates to focus to your needs. Put this thing up to a bright light source and it is clear as day what your salt reading is at. I use refraction meters at work and this one works as good or slightly better than some of my expensive meters. Calibration is really easy, just fallow the instructions.
February 24, 2014
I like this product. I find it is easy to use and accurate. I upgraded from a hydrometer. This is a much better and more accurate salinity gauge. Helps a lot when I am mixing up saltwater. It's a bargain for the price.
December 8, 2013