GuDoQi pH Meter, 4-in-1 TDS/EC/Temperature/pH Tester

Got these to test the Ph and EC levels of the nutrient solution in my hydroponics systems and they are currently doing great. The product is really handy to keep the Ph and EC levels steady in my nutrient solution and the multiple readings can be taken in a row which is really handy. The Ph tester even comes with different packages of Ph buffer solution so that's really handy as well. My plants in my hydroponics system are doing great right now thanks to this product. Overall really like the product.

Good.

Great piece of kit. Comes complete with spare batteries.Excellent price and very reliable.

Super fast delivery, thank you.

I'll be returning this item because every negative aspect of the AI summary is true. Putting aside the fact that the battery in the TDS meter was flat and very scratched, there was no spare battery (as advertised), the instructions dog eared and, on the whole, the device looked like a returned item, the performance was also grossly lacking on two fronts:Temperature: I have two different thermometers on my aquarium to ensure it is at 25C, and I use a third when doing weekly water changes. All three thermometers are in variance of 0.1C. In comparison, the thermometer on this tester is WILDLY inaccurate, reading either 27C or 22C, but nowhere near 25C How can I trust that the TDS aspect of the device is accurate if the simple act of reporting the temperature is so very wrong?Ph: I have TWO different liquid drop pH test kits (NT Labs & API), and both these kits tell me my aquarium is pH 6.8. But according to the meter it is 7.43 - which is 4.27 times more alkaline.Furthermore to attain any kind of steady state reading for either parameter takes a lot longer than other methods available to me.In summary, the speed and greater 0.01 degree accuracy that these devices claim to provide is a myth.

Cant go wrong for the price, easy to use and work well as far as i can tell.

Could be better, the meters arent as accurate as a blue lab or something but not that far out, a small percentage. Do the calibration first.

Love it and very accurate!

È un misuratore TDS & EC per l’acqua.* TDS (Total Dissolved Solids) → misura quanti sali/minerali disciolti ci sono nell’acqua (ppm).* EC (Electrical Conductivity) → misura la conducibilità elettrica dell’acqua (µS/cm), collegata alla quantità di sostanze disciolte.Si usa spesso per:* controllare acqua osmotica / depuratori* acquari* idroponica* verificare qualità dell’acqua in generaleIn pratica: lo immergi nell’acqua e ti dice quanto è “carica” di minerali/sostanze disciolte.Tester molto utile per misurare la qualità dell’acqua, valido e preciso, il mio sistema di filtraggio è waterdrop x12 e il tester conferma il valore dato dal sistema di filtraggio! Nel video faccio il confronto con il mio sistema di depurazione e i valori sono quasi identici

I bought this pH meter, but after receiving it, the meter was automatically showing a reading. I thought the product was defective, so I decided to return it.Amazon did not arrange the return pickup. I had to print the return label and courier the product myself. Amazon said the courier charges would be reimbursed, but I had to call Amazon and send them a copy of the courier receipt.This process wasted my time and was very inconvenient.Very disappointing experience. I would not recommend this product.

Goed werkende meetunits voir het bepalen van de pH en de verontreinigingen in het leidingwater en aquaria etc. Jammer dat de handleiding in het Engels is.

Zakupione mierniki używam w domu do kontroli wody z kranu i tej przefiltrowanej zestawem filtrów odwróconej osmozy. Mierniki nie mają znaków firmowych, jednak są bardzo dobrze wykonane a co najważniejsze precyzyjnie i powtarzalnie podają wyniki pomiarów. Teraz wiem, jaką wodę piłem do tej pory i jaką piję po przefiltrowaniu. Polecam ten zestaw. Stanisław.

Fonctione bien, petit parametrage a faire pour le ph. Viens avec des piles.