pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System

I needed to ph my water for growing tomatoes so I got this reader. It works great and seems to be accurate so far.

Great product

Works well!

Was looking for a solid backup pH meter pairing with my Gravity probe and this was new to market and holding good reviews.While calibration is straight forward and user friendly, I calibrate using all three: 4, 6.86, and 9.18 ... I noticed the pH slippage soon after and by day 3, when I need to use it, the pH offset was +.7.At first, I thought, "great another Vivosun cheap-o." -- After calibrating several times in a short timeframe, I was in a rush one day and only calibrated using 6.86 and 4. After a few days, when I needed to pH again, magical it was only .02 off from my Gravity printout.Ever since then I went more than 3 weeks without the calibration process and the pH slippage as only been +.04.-- Images were taking +3 weeks after calibration.Not only does it give accurate pH level(s), but also gives temperature, EC and PPM readability.Conclusion: Although I noticed the offset/slippage in the beginning using all 3 pH solutions, this has been holding up great ever since the 6.86 & 4 calibration.This would be a great introduction investment if your looking for a quality pH meter that's quick to printout pH values within .05 range.The temperature and EC functions have been on point. The EC comes calibrated and reads 'natural values'.Not sure how long the battery with live, but with a quick backlight timer, it's a function that many would say is a negative, but I see it as a battery saver, which is a plus. Remember to store sensor in 3M solution when not in use. I recommend.

More durable than some of the more expensive brands

I purchased this in May 2025 and the PH Meter quit working in August 2025 and it killed several of my plants due to incorrect readings. I could not find any customer service. I followed the storage and cleaning instructions and was very careful with the device.

Ivey had other testers but none in this price range compare. Works very well and holds calibration well. Easy to read in metric and US

Holds calibration pretty well. I feel I can trust its measurements unlike the cheaper ones I had that didn't hold calibration at all and I had no faith in.