Hanna Salinity Tester HI98319

Works great in the aquarium and cleans well. Easy to use and great value. I bought the large size and it is pretty good in size for my 75 gallon tank.

Tried the standard plastic meter and microbubbles and inconsistencies drove me nuts. Opted for a refractometer and it was ok, but I had to calibrate it before every use and sometimes with my eye site it was a pain to use. I opted for this as it was straight forward calibrating it once and it takes seconds to get an accurate reading. This should be the first choice over the others. It costs a bit more, but you get it back in ease of use and assured accuracy for your tank.

Excellent

My kio pond has started to become problematic after 21 years of fish. I needed to check on my pond salinity and other chemicals. I bought this unit as the old liquid salinity test kits are hard to find and apparently has some harmful chemicals in those kits. This is very easy to use and appears to be very accurate. It comes with a test sample of a known solution to verify the instrument. It has worked well for me.

First and foremost - this tester said my saltwater tank water had a salinity of 40 and a density of 1.030, though my older tester said 35 and my refractometer said 1.025. I tried to calibrate the new tester, but (1) the instructions are in tiny print, so it's hard to read, (2) you have to open the battery pack and press an invisible button with a tool that isn't included in the package, (3) you have to transfer the included calibration fluid into a beaker that isn't included in the package, and (4) the tester said ERR when I did all this. When I tried reading the 35 ppm calibration fluid, the tester was all over the place, and nowhere close to 35 ppm. What a frustrating experience.

Love the unit ... calibration fluid you should order as your ordering the unit as you absolutely need them for calibration ... easy to use once you figure it out which I would suggest the you tube video which is more helpful than the Manuel .. overall very accurate except for temp

I have recently return to the salt water tank hobby, with that being said this tester is so easy to use once it is calibrated. It comes with everything you need to set up and go including the battery and water pouches for calibration. One thing to not under the battery is a clear blue plastic tab that has to be removed, its in the instructions but its kind of difficult to see. I would recommend this to anyone with a salt water tank.

Product arrived Brand New and in its box everything was sealed. Easy to use simple instructions. Fahrenheit to Celcius reads temp and parts per thousands in 3 settings. Amazing product Highly recommend. Starting using it right away. This is rhe best way to have accuracy. With calibration each and every time.