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Patrick
2025-08-29 15:49:53
I used this for work testing water quality and commercial filtration system calibration/function while repairing high-end espresso, coffee, beverage machines. The app and Bluetooth functionality came in handy for record keeping and spotting patterns when having repeat service calls at a location.
Dustin R.
2025-08-17 17:36:12
Accuracy was good for about 60 days. I’m sure I got a defective one though. Now my pen will not calibrate.. Hopefully they honor the warranty. I will up date.I emailed Vivosun and they sure did send a new one. I’ve bought multiple products from this company and they stand behind the warranty’s on their products. Super easy warranty claims. I have an older model PH meter that i bought 2 years ago and it is still supper accurate.
Moops
2025-07-14 11:22:07
Don't trust this trash for anything. pH calibration literally never works, and pH will bounce around WILDLY reading from 4-8pH during any reading or calibration. TRASH.
Charlie "Chuck" Brown
2025-07-07 12:23:36
Purchased my first meter in May 24. When measuring pH, meter would start jumping around by like .5 at a time, other than the gradual sweep I normally seen. Messaged Vivosun and they credited me a new one. Very good product with excellent support. Worth every cent. Biggest bang for the buck you will ever find. Thank you Vivosun for your attention to detail.
Jake P
2025-07-04 13:19:24
It's what you'd want for a better than super cheap tester, no issues and has consistently functioned accurately for me.
pops
2025-05-24 18:51:13
Really simple, straight foreword, easy to calibrate, easy to access the batteries.It’ll do the job as well as the 100 dollar one…
Right Away
2025-04-09 13:10:37
Vivosun stands behind their products. I used this meter for 6 months and it quit working. Customer Support refunded my purchase price. So I bought another. Accurate measurements. Excellent tool at a very good price.
Michael L Wright
2025-04-08 18:36:13
As far as mid-range ph meters this is a decent meter. I had decided to upgrade from the black and yellow ph meter to this one and when compared its night and day. This meter has a backlight which I love it came pre-calibrated off by maybe .1 or .2 nothing that would really effect anything when re-calibrating was super easy with RO water. I tested this side by side my cheap black and yellow (11 dollar) ph meter and could deffinatly tell i needed a upgrade the black and yellow would be completly off even after re-calibration this one held calibration through and through even after doing several ph readings with diffrent liquids and water no issue. the PPM I couldn't really tell as I compared it with the blue reader ( cheap one) and came out basically the same so I can assume its accurate out of the box.
Tom
2025-03-29 13:37:49
Forget all the other types of PH testers, buy this one for accurate reliable results.
Maria Pauls
2025-03-22 13:49:50
Gefällt mir sehr, leicht im Gebrauch, bin sehr zufrieden, danke
George Leon
2025-01-25 16:57:07
Not worth the money spent on this. It needs to be calibrated all the time and it’ll stop working within the year.
Lady B
2024-12-29 15:43:34
Couldn’t understand the instructions nor the readings. Returned and bought a more expensive one that had ‘normal’ readings!
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