2 in 1 pH & Temperature Monitor, pH Meter with Backlight Function, Dual Display 0.00~14.00pH °C/ °F Water Quality Tester pH Monitor for Water, Fish Tank, Aquarium, Hydroponics, Pools

Really nice small unit that is mains powered and shows bright Ph and temp numbers on a green background. Being mains is stays on 24/7 unlike my other monitoring unit that is only battery powered so I try to keep it off. Use the Ph testing solutions to know how the unit reads. Both my units monitoring read under by 0.5. Doesn't have a good way to hang it up. Has a sticky tab that falls off from a U carriage. Needs a couple of slots to secure it easier with zip ties or hooks. But really like this small unit. Quick to react to water changes immediately. Like it.

This was very easy to calibrate, and I was able to see my other PH device was off as I thought. I would suggest this to anyone especially since it is ac/dc.

What a disappointment ! All i wanted it for was to monitor ph levels. Received product with ph probe floating around in the box with no cap or cover on probe. . . DOES NOT WORK !!! . . . I can measure the exact same water 5 different times and get 5 different readings of + or - 3.. not point 3 but a full 3 ph levels variance. SAVE YOUR MONEY ! ! ! Why is so much JUNK being sold on Amazon ? LoL, the temp probe works great but that makes for an expensive temp meter.

Does the job well, if powered buy a level control it must be turned back on

I ordered this because I was having issues with my Hanna PH Checker reading high. I was suspecting either a bad Hanna or bad Reagent. I ordered this to verify my PH on my Nano tank. Very easy to calibrate and has been up and running for 3 weeks now and confirmed my suspicions about the Hanna checker. Now for the reason I did not give 5 stars. It comes with a plug in cord as well as button batteries. Since I was low on plugs on my power strip, I set it up with battery power - not the cord. Within 3 days the temperature still read, but the PH showed blank. I messaged the Seller - who was extremely helpful! They suggested it may be a low voltage issue and to try using the plug, not the batteries. Sure enough, as soon as I plugged it in, the PH started reading again immediately. All in all, I would highly recommend this little monitor to any reef keeper. Just make sure you keep it plugged in. You can feel secure in knowing that the seller does back their product and will help with any issues you may have.

I went thru the process of calibrating it and thought I was dialed in when I first put it in with water that was 4 weeks old. Seemed to be staying around 7.5 which seemed pretty close to my PH strip test. Then today I did a complete drain and refill of my cold plunge and decided to use a PH strip test for comparison and the strip said it was between 6.8 and 7.0 and the meter said I was at 8.5. This was with filtered tap water so I'm leaning toward the strip being accurate the PH meter being off. I'm going to let it dry off, put it in some distilled water and try it again tomorrow to see if it was just an anomaly.

I’ve had this for about 2 years and still works like it’s brand new. Temperature is on point and very accurate with the pH. Battery life is great and this product is very durable. I highly recommend!

Easy to calibrate once you decipher the directions, but the thermometer is not accurate. Can not contact company in regards to the problem because it has been 9 days too long so 50% functioning.

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No refleja el ph correcto, tras analizarlo con un análisis líquido y cotejarlo con uno de más calidad el resultado es muy malo, han crecido algas descontroladamente por seguir las indicaciones del medidor y aplicar incorrectamente el co2

Easy calibration instruction, highly recommended for salt water tank with less budget

Instrumentet visar fel ph värde, jag har kalibrerat det 4 gånger och provat att mäta ph värdet i olika delar av akvariet utan att märka någon skillnad. Jag har även jämfört ph värdet som visas på displayen med 2 andra metoder och märker tydligt att instrumentet visar fel värde. Det här var slöseri med tid och jag lämnar instrumentet på en återvinningsstation för återvinning av delarna till något annat, kanske leksaker. Det enda som visas rätt är temperaturen. Jag rekommenderar inte produkten, tyvärr!

Funktioniert sehr gut