Considering the price this was a great way to test how well my new 5 stage reverse osmosis water filter was doing compared to my old Brita filter and tap water. So true? I have no way of knowing unless I buy an expensive water tester. However, it shows the relative difference between filtered and unfiltered water and the results really surprised me. The city water was 233ppm, Brita 179ppm (about a month old filter) and the 5 stage filter 10ppm. So I like to install a water filter in my kitchen. I will post pictures of different tests but wanted to talk about the counter. It seems to be a fairly common switch, many companies sell it and the price ranges from $10 to $20. This comes in a vinyl sleeve and has a cap to protect the test leads. You just turn it on and dip it an inch in water and you'll get an instant reading. The main display is parts per million, but it also shows US/cm, degrees C and degrees F when you press the mode select button. There's a hold function so you can still read the display after you've taken it out of the water. Overall the quality looks good, it's just plastic. There is a color chart on the back of the meter that tells you if your water is within the acceptable range or not. Overall I'm happy with this tester and hope it lasts long so I knew when to change the filters on my 5 stop filter.
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