Product review (3 stars): okay for the price
This is an ok meter for the money. If you need speed and extreme accuracy, this is not the one. It is ok for use if you are not worried about the exact accuracy of your solution. You MUST clean and calibrate the meter when you get it. I had some issues with this meter and so I did buy a more expensive unit. I believe the the range of accuracy is a bit more than listed by almost 1 unit. Not sure why they do not have a warning about trying to test distilled water. Apparently you cannot because there are not enough ions in the water to test it.