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!

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.

I have had this tester for only 2 weeks and it no longer works at all. I followed all the storage and usage instructions, and every day the pH was more than 2 points out of calibration. The last time I turned it on it was stuck at 16 pH and 221 degrees temp and the cleaning solution, ice water, etc wouldn't change the reading. THe battery then died and now with new batteries it won't turn on at all. worst pH meter ever - don't waste your money

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.

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

This tool has been a great investment in my winemaking adventure. It has been very dependable. It is relatively easy to calibrate. It is much smarter than I am! Yes,........ I would buy this again!

When your whole aquarium relies on these two fundamental elements you don't really need anything else. Calibration is easy. You get a reading in 15 seconds. Easy to keep an eye on your tank.

Worked OK for about 2 months, although readings fluctuated during this time. Then the fluctuations got worse until now it is impossible to re-calibrate and the readings are incorrect everytime. The product is fragile and I wouldn't recommend buying.

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.