I ordered this the other day and I finally got a chance to really test it out today. The TDS meter is very accurate. I tested it in distill led water and it read 0 ppm, I then tested the tap water and it read 126 ppm. I dipped it back in the distilled water to rinse the electrode and it read 5 ppm. Not bad. Very quick reading too.
The pH meter was a little more troubling. I finally got it calibrated correctly after giving up and deciding to read the directions that came with it. I pHed my tap water and found it to be 7.65 which explains the poor results I have had in the past. You really can't beat the price. With Amazon prime I had it to my door within 2 days for less than $28 bucks.
http://amzn.com/B00Y0NVH8C
The pH meter was a little more troubling. I finally got it calibrated correctly after giving up and deciding to read the directions that came with it. I pHed my tap water and found it to be 7.65 which explains the poor results I have had in the past. You really can't beat the price. With Amazon prime I had it to my door within 2 days for less than $28 bucks.
http://amzn.com/B00Y0NVH8C
