0-14 pH Electrode Probe, pH Meter with Replacement BNC Connector and 300cm Cable Sensor for ph Monitor Controller Tester Meter Kit Set for Aquarium Hydroponics Plant Pool Spa

I am currently using these for my Neptune Apex unit for a reef tank. They both were accurately calibrated out of the box when they arrived. As a precaution, I decided to do a 2 point calibration anyway. I have been using them for the past 6 weeks to give an honest review. I have purposely not done another calibration so I can document when they start to drift. I normally would want to calibrate every 2-3 weeks as a precaution. I am very pleased with how they have been performing. I would order with confidence again. In the screenshot I shared you can see the variance in the two probes. 0.05 is about the threshold I would say is time to do a calibration. They are starting to drift in my opinion. But they are still very accurate. Just not as precise. They are quick to respond to dosage chemicals which is important if you are controlling chemical pumps based on pH.

I RLY had my doubts buying this one, but it has proved itself. It measures accurate, works as it should. I'm impressed. Cant speak for longevity, but so far, it's still going. :)

Cheap probe, does exactly as advertised. Use with atlas scientififc ph circuit. Its accurate within specifications but cheap construction, I dont anticipate this probe lasting longer than a year but for $17 you could by 3 and still be cheaper than most probes

This item replaced the pH probe on my deep water circulating hydroponic system. It was easy to swap out and calibrate. I was having trouble calibrating my old probe and I realized it had not been stored properly when not in use. If these probes dry out, they are ruined. Fortunately, this unit comes with a special bottle for storage which keeps the probe wet.

Pure junk. Don't waste your money. It never calibrated correctly and was .5 lower than the actual Ph when checking with 2 different test kits. That sucked but because this probe is so cheap I could live with adding .5 to the ph reading. Than it died in 2 months time. In my reef tank the readings went from 7.7ph to 2.2ph. Pure junk

Looks and functions just like the name brand except for the accuracy. Approximately a week after calibration(twice) it shows .3-.5 off of true ph reading

Great quality and accurate. This is my 3rd one. I use it for my reef tank.

Most importantly the probe arrived with the storage solution not dried up. When I buy the brand name Milwaukee probes half the time the storage solution is dried and the probe is unusable. This probe was not. It was well packaged to prevent storage solution loss. Calibrated it with the included calibrators and it works like a charm for almost half the price. What more could you ask for. Gonna buy another to have a spare on hand.

Muy por debajo del precio de otras con la misma función pero de marcas conocidas. Sin dudarlo volveré a comprarla cuando la necesite

Parfait

ふくろう２で使用するために購入しました。 他の商品も含め３本目です。 中華のものは半年持たなかったです。 もったいなかった。 動作的には問題なく稼働しています。 この商品の耐久性はまだわかりませんが純正の商品よりかなり手ごろな値段設定です。 収納ケースは立派なものに入っています。 通常は試験時に取り出して使うような使用用途が想定されているのでしょう。 ですのでケーブルも長めにで私の使用用途ではちょっと邪魔です。 またBNCコネクタの首の部分も強固な作りで過酷な使用環境で使用することが見て取れます。 ですがこの首の部分がふくろう２には太すぎで接続部分を隠すケースが閉まりませんでした。 まあ動作上支障はないので気にはしませんが外観気になる方にはお勧めできません。 使用上全く問題はないですがあとは耐久性がいかほどか。 １年以上持ってくれるといいなーと期待を込めています。

Auf Grund der Bewertungen und wegen dem günstigem Preis, habe ich diese PH Elektrode für mein AQ bestellt. Die Elektrode wird in einem stabilem Koffer geliefert und funktionniert ohne Probleme mit dem Dennerle Kontroller. Sie ist villeicht ein wenig träger als die Original Dennerle. Muss dies aber noch beobachten da ich sie erst seit 2 Tage besitze. Auf jedenfall lies sie sich einwandfrei kalibrieren.

Perfekt lätt o kalibrera