Fristaden Lab Benchtop pH Meter | USA Company | High-Accuracy (0.01 pH) | Calibration Solutions Included

We're surprised with less than $200 perfect product.Remember to clean and calibrate before every new section.Then, we will have an accurate measurement.ThanksDr. MD, PHD Garry

The slope is always between -50 to -60 mV per pH unit and the quality control buffer is always less than 3% error so it is a good benchtop pH meter for the price.

It reads a little slower than preferred, but half the pH meters I have used in the past are like this. I'd probably call this one average. It is accurate on my initial tests with standards within 0.02 pH. I have not done any in-depth testing to determine if it is more or less accurate. Will have to see how it works long term, but for now it is a great pH meter, seemly equivalent to one that costs 5x as much.I had a minor issue with the product and contacted their support and received an almost immediate response and was helped right away. It seems they are a very good company to deal with if any problems should arise.

This machine is very cheaply made. It worked the first time we used it and then a week later it would not even calibrate. No amount of washing the diode would make it read the buffer solutions at the proper pH. No help line to call and all the online tutorials are in Chinese. And the cheap plug keeps tripping the safety switch in our building's electrical outlet. I would not recommend this item to anyone.

Super product, great price.

Arrived really fast. Great product with high quality. Highly recommended.

Power cord we received with meter did not work. Had to order a new one

Like it. Better to have pH calibration buffer next time. Thank you.