YINMIK PH Meter, Digital 4 in 1 PH EC TDS Temp Meter for Water Hydroponics

I have a nice sized home hydroponic garden. It keeps me busy testing nutrients and staying in my scheduled nutrient changes. I’m 81 years old and have soil gardens my whole adult life. I’ve wanted to try hydroponics so this last winter I started a Dutch bucket garden. Main idea was to get a head start on moving it outside in sunlight in May. All has gone well but the necessary maintenance of the nutrients PH and EC and the two week change outs have kept me busier than I’d expected. I’ve purchased several different meters to gauge these levels only to be disappointed by the amount of time it was taking and the variety of results. Then I found YINMIK PH Meter, Digital 4 in 1 PH EC TDS Temp Meter for Water Hydroponics. This is the finest, easiest, most accurate meter of all that I have purchased. DONT waste your money on the others, buy this one, it is awesome, you won’t be disappointed, I wasn’t. Happy gardening…

No complains, works very well.

Works good make sure you follow the instructions for the calibration solution and calibrate every few weeks for safe measure only problem I have is it jumps all over the place once you pull it out of the water or solution your testing even after rinse and drying it seldom sits on 0.0 like it should but as soon as I put it in the water I'm testing or the calibration solution it reads perfect I'd say good buy for the cost when comparing to some of the other stuff

Works very well its accurate and easy to celebrate. No problems

Great reliable ph meter for checking mash ph with home brewing. It is easy to calibrate and holds calibration. The temperature feature is nice and for the price I haven't used a better meter. I would pay double, highly recommend this meter.

Probe is reading pH's of buffer solutions almost 1.01 whole point lower than each pH packaging implies should be (4.00 solution offers 3.01 reading, 7.00 solution offers 6.01 reading, and the 10.10 offers 9.11 reading). pH of buffer solution was tested w/ pH strips to ensure the solution values were accurate prior to attempting calibration, and of course mixed the powders with 250ml of distilled water as directed. The whole point of calibration is being able to adjust output readings based on input values so that output is setting out the correct measurements. This pH probe is useless as is unless I want to add .99 to each and every measurement I take, though I have no confidence in the product anymore anyway. Also, the cap contained a sponge that instructions indicated was supposed to be moist. It wasn't, and there was some kind of unknown clear slime on the inside of the cap that I'm sure the probe had contact with or that somehow leaked from the probe. Either way, I'm not happy. Product packaging instructions indicated it could be returned or replaced within 12 months, but Amazon's stated option is only 30 days. We're about 15 days past that, so I guess I'm just ripped off. Sometimes it reads straight 0000 across unless you kind of knock it against the glass, insinuating that there is a faulty connection or chip in there somewhere (despite unscrewing and ensuring everything is connected properly). *Editing to add* This product did not come with the calibration solution for EC/TDS settings either, nor the storage solution (I read in a review that product finally calibrated correctly after being submerged in SSolution for 24 hours, and given the cap sponge was so dry, thought I would try BUT I don't even have that option here. Did add a couple of drops of distilled water to cap sponge as per instructions, but it does not seem to matter much) And, only 2 packets each of 4-7-10.01 pH buffer solutions, which is also unhelpful beyond 2 calibrations, IF they had worked in the first place.

I use this pH meter when making cheese and it works well.

I was in the market for a decent pH/PPM Meter that wouldn't break the bank. A few people recommended this one, and most the reviews I read here were good so I went for it. Shipping was quick and the meter came with good instructions and buffer solution. I was able to calibrate with no issues. The protective cap has a protective sponge that is to be kept moist per the instructions, and you're instructed to add a little pure water to the sponge if it dries. The manual also states water droplets are added during production to maintain moisture of the probe. Since receiving and using the meter, I had no issues with the sponge drying out. I followed all instructions that were provided to, and since I've used a similar meter in the past I was comfortable when using. About 2 weeks after using the meter, I removed the protective cap, only to see the sponge was covered in what looked like white mold. The probe itself was also moldy. I carefully cleaned the probe and cap, but with each use, the problem continued getting worse. I reached out to the email provided in the manual as I was unable to reach out via Amazon. Response was quick, as follows : "We are sorry to hear that the sponge is moldy. As the weather temperature rises, no preservatives are added to the sponges, causing the sponges to become moldy. Please clean the electrode tip with a cotton swab or brush, and use tweezers to pull out the sponge. This is a newly upgraded electrode, even without a sponge, it will not affect the pH reading". I did question removing the sponge, but I was assured it would be OK. I very carefully cleaned the electrode like Lucia told me to. For the time being, it seems to be working just fine, but I'm nervous that it will malfunction. I'll update my review if anything changes.

I have no complaints about this, it works perfectly every time. I love all the different readings it gives even though I only bought it for the pH. The moisture meter is great too.

rapide et ^précis

Followed instructions exactly. Tried 20 times. You’re supposed to turn on unit, place it in 7 ph calibration solution, let it settle and then hold cal button for 5 seconds. That’s supposed to enter calibration mode. Tried holding everywhere from 2 seconds to 30 seconds. No matter what it won’t calibrate making it useless. Unless the seller can fix this I’ll be sending it back. Waste of money and most importantly time.

Honestly, if you're on a tight budget, it's PH meter as s*** garbage and drifts, it doesn't go back to calibration, like your dip in a calibration solution.What is the 7.7?And then it reads it out at a f****** 7.1, like.Honestly, this s***'s garbage do not buy it.It's from china china china disclo