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product description
What is TDS and why should I care?We cannot intuitively understand the purity of drinking water.Seemingly transparent water may contain many impuritie. TDS = total dissolved solids,which are inorganic salts and organic matter in the liquid.The lower the TDS level,the purer the water.Conversely,a higher TDS content means that more particles (such as heavy metal ions) are dissolved in the liquid.We are equipped with a backlghit LCD for easy reading.If TDS ≤ 40,the backlight color is green,and if TDS> 40,the backlight color is red.
Instructions for use:
1. Remove the pen cover and press the ON key to turn on the tester
2. Place the pen in the solution to be tested,the height of the solution should not exceed 4 cm (from the end of the pen)
3. Gently stir the tester several times in the solution to be tested,then wait for the reading to stabilize within a few seconds
4. After use,dry the water quality on the tester with a cloth and cover with a pen cover
Widely used in all water quality tests,water purification applications,aquaculture,hydroponics,pool and colloidal silver,water treatment,etc.
You can test tap water,filtered water,distilled water,bottled water,well water,chilled water,etc,It is a necessary and convenient tool for every family.
CONOR GRIFFIN
Reviewed in the United States on March 7, 2025
Its garbage. Ran water test before and after installing new water filter on sink, came up 350ppm and is in RED, but on the back anything at 400 or more will go to red. I used my old tds meter it said 319. So it's in the garage
Al Bell
Reviewed in the United States on June 1, 2023
Only measures hardness of water not toxicity
GP
Reviewed in the United States on February 24, 2023
Will give you basic idea about your water quality. Measures not very consistent. Other then that great product for the price.
Delighted
Reviewed in the United States on March 29, 2021
I used this to monitor the performance of my reverse osmosis water supply, so that I can know when filter change or general service is needed. It works well with high level of accuracy. The results are comparable with what the professional serviceman obtained when he came to service the unit few days ago.
Q
Reviewed in the United States on February 6, 2021
This meter tests well against my more expensive PPM meter. I use it as a back up, but I would feel fine using it as my go too, I find that these types of meters(PPM/PH) at this price will be accurate, but with heavy use they tend to be disposable. Like a lighter, they do the job, until the don't. You can get the job done with these and feel confident with it's reading.
Matthew Twain
Reviewed in the United States on February 2, 2021
Works great to test reverse osmosis and when our pool water needs to be changed. Easy to use and I like that the instructions are right on the back. No manual needed.
Ken
Reviewed in the United States on August 28, 2020
I bought this TDS Tester for testing my new refrigerator water filter. I could not trust what the advertisement on the filter said, and was I surprised after using this TDS Tester to test the newly installed refrigerator water filter. As you can see the water was not safe for daily consumption. I also used the TDS tester to test the sink water and bottled water. This TDS Tester is very accurate doing its job, the bottled water was under 50ppm (drinkable) and sink water was above 400+ (not safe for daily consumption). I recommend buying a TDS Tester if you want to know if your water is safe to drink.
Melba Burke
Reviewed in the United States on October 4, 2020
Effect of temperature on TDS:As water temperature increases, the conductivity of water also increases; where TDS in water is directly related to conductivity. ... Temperature influences conductivity by increasing ions mobility and additionally the dissolvability of many salts and minerals. (copied from Google)I checked several different samples of water and the meter appears accurate. Just make sure that all samples are the same temperature otherwise the same water source with different temperatures will come back with different readings. Hope that helps first time users.
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