YINMIK pH EC Meter for Water Hydroponics, PPM Meter for Nutrients, Measure pH PPM Conductivity Temperature of Hydroponic Garden Water and Nutrient Solution, EC pH TDS Meter for Water, Aquarium, Pool

Hydroponic meter works good at measuring PH,nutrients,etc.

Love this meter. I use this meter daily for several hydroponic systems and the readings are always accurate. The battery life is great and I've needed to change them once in I don't know how many months now. Assuming you have good batteries, the meter is very bright which is nice under a full canopy. It seems to be good quality and doesn't feel flimsy in your hand. There is a little loop at the top to add a lanyard of some sort if thats your speed. I use this to fit the meter down into deeper reservoirs. The meter and screen are a good size for measurement and visibility.

This is phenomenal! I have a 55 gal drum attached to 12 bucket sites for an ebb and flow system. This is amazing to just toss in the barrel! I will say you have to almost mount the prob in a way that makes in "dangle" in the water. I found if it its the side of the barrel or especially if the prob makes contact with the bottom it will throw off the numbers. I will add a video because I can throw a tiny PH down/PH up in the barrel and you can see it start to change the PH number in the tuya app! Seriously amazing product, I can monitor my hydroponic system from anywhere! Seeing how responsive this is, I would trust for an aquarium tank

Have to recalibrate more often than I like, but works well if you keep up on it.

Great product worked as expected and advertise. It has been a year now and it still works like it did brand new. I didn’t even have to calibrate it.

Probe is not accurate. Calibrated the PH and EC/PPM measurements. PH was accurate for about 10 minutes then started to drift. The EC/PPM measurement was off from the get go even after calibrating. Verified and checked this with multiple freshly calibrated meters. Will probably be returning as the measurements are inaccurate.

Manufacture replied and sent a replacement meter that is working fine. My mistake was not purchasing two meters so when one failed I had a second to continue measuring nutrients for my hydroponics. Meters sometimes will fail and I should have had a replacement handy since I needed it everyday. I may have gotten a marginal meter the first time. The manufacture did stand by their product and sent a replacement quickly. The original meter worked fine for 2 months, but then stopped calibrating Was told by Amazon no replacement after 30 days how nice! I give the meter 4 stars since they sent a replacement, but should have worked longer the first time. For the price you can't really expect a high quality instrument.

Works well easy to calibrate.. Nice to have a continuous ready handy on your phone.

Though I never tried the super high end EC meters for 4x this guy's price, it's super accurate and has been since I bought it a few months back. I tested it against 2 different name brand drops. Just take care of it and rinse it off with distilled water every time you use it and don't smash it around like a toy and nothing will break or malfunction. Love it.

excellent unit, works must better than my other meter. Easy set up.

It went on and a few moments later it went off for good. It had a us plug i used a universal adapter. Should have been fine. It was faulty. The refund return was,very easy thanks to amazon so I'm happy with that

works perfect and has auto shut off

parfait il va tré bien good en plus il a une feuille qui indict la calibration pour les Nutriment pour Hydroponique Good