Home installation of water purifier users, TDS test pen must not be unfamiliar, greentest eco 6 the general installation owner will take out the test pen to you after installing the water purifier.

TDS pen has become a brand, installation master saliva water quality tester, they will tell you: the lower the TDS value the better the water quality, the higher the TDS value the worse the water quality.

But in fact, radioactive detection can the value measured by the TDS pen really represent the quality of water?

In fact, our TDS value can be very one-sided, and can not fully represent the quality of water quality, radiation detectors for sale we should retain students' own judgment when using TDS pen test, and not be misled by the publicity of corporate brands.

The TDS test pen reads reliably, but not completely

First, we need to understand the function and principle of the TDS pen. Baidu Baike describes its functions in detail:

TDS is short for Total dissolved solids and, in milligrams per liter, indicates how many milligrams of dissolved solids are dissolved in 1 liter of water.

It contains the total amount of inorganic salts and organic matter. By measuring the total dissolved solids, the total salinity of the water can be analyzed.

Therefore, we generally say that it can test the amount of dissolved substances in the water, and can not reflect the specific social substances in the water. It is impossible to define the quality of water without determining the specific dissolved content of the problem.

For example, our sense of good water must contain mineral water and pure water.

If you test the two types of water separately with a TDS pen, you get two results. The TDS value of mineral water may be around 100, and pure water may be between 0-10.

If pure water is superior to mineral water based solely on the TDS value, it is obviously a wrong conclusion.

How to use TDS pen scientifically?

First of all, for an ordinary student's family education, the reason for contact with TDS pen is mostly the installation of RO reverse osmosis water purifier, so the biggest use of TDS pen is to detect the filter effect of water purifier.

Usually, after the reverse osmosis water filters out the tap water, the TDS value can be reduced to 0-30.

At this time, it can be said that the lower the TDS value, the better the purification effect of this water purifier, and the TDS pen can be used to regularly detect the water quality of the water purifier, and the working state of the machine can also be understood in time.