Hanna Instruments HI98128 pHep 5pH/Temperature Tester, 6-25/64" Length x 1-19/32" Width x 1" Height

Taking my local extension Master Gardner program we used these to do soil tests. Since then I have started my own lawn care company and I tried cheaper ones with very inconsistent results. The Hanna works very well, plus they have headquarters only a few miles from me!

Some assembly required. Make sure you follow the instructions to put the sensors in properly, otherwise it is not water resistant. Made that mistake and had to air dry the water from the inside of the thermometer.

I'm a homebrewer and I got one of these for measuring the pH of my grape must. I'm also a cook and a physicist and I like being able to measure the pH of lots of things. This is a nice balance between price and accuracy. This is probably as accurate as you would need for any household application. You need to have a buffer solution to store it in and you should have two solutions for calibrating. It's not trivial to use properly (you should read the manual) but it's not difficult either.

Works perfectly and easily. Forget ph strips, this has made controlling my mash ph very simple and quick.

This worked a few times when I first got it. Its a complicated instrument, difficult to calibrate and prone to problems. I find I cannot trust the readings and no longer use it. There are much easier to use PH meters on the market which have been designed for the customer.

I'm extremely happy with Hannah, their customer satisfaction is amazing! Their ph meters r awesome and they r pretty damm accurate!

I have been using the Hanna pH/Temperature tester for two months now. It gives relatively accurate readings, and is easy to use, and calibrate (using the calibration solutions...sold separately). I keep mine submerged in a balanced salt solution. It is critical to keep the electrode hydrated at all times. If it should dry out, the life of the electrode will lose its accuracy, and may have to be replaced. I use mine to gauge the acidity of cheeses that I am making from milk products. The reason I only gave it a 4/5 is because you must recalibrate it after4 each usage. You must also purchase the standardizing solutions separately....an expensive proposition in the long run. But, I would purchase this model again.

AMAZING product. I am a home brewer of beer, this instrument works very well, a must have.

Does exactly what you need it to do.

Me funcionó bien para para muestras de laboratorio, de aproximadamente 4.5 de pH. Llevo un año con el y se descompuso el electrodo pero, tiene la ventaja que puedes conseguir el electrodo y reemplazarlo sin tener que comprar el equipo completo . Ya se compró e instaló y funciona excelente. Fue una buena compra.

excellent

A+

It is accurate and easy to calibrate. I use it for checking the PH of water for brewing.