A device for home analysis of water. Devices for testing water quality. Chlorimeters and oximeters

Today I will try to take on the role of our valiant Rospotrebnadzor and check the quality of the water we drink. More precisely, I will tell you about a device that is available to everyone and which can test the suitability of water for use, and, moreover, it is of high quality and at home.

What for?

It's about Xiaomi TDS. The device is curious from several sides at once. Firstly, this is a gadget from Xiaomi, which in itself is interesting for any techno-geek in our, and not only the country.

Secondly, each of us probably at least once in his life, but wondered about the quality of the water that he uses for food. Most of us don't drink tap water and do it right. We do not live in Italy, but in Russia, with already outdated communication systems. Hence the quality of the water that flows through our pipes. But this is only one side. Some citizens like to travel, find springs and get drinking water or cooking pots there. This is, of course, a good thing, but it will not be superfluous to check the sanitary condition of such water.

And thirdly, the gadget is inexpensive, and in view of the upcoming beloved holidays of February 23 and March 8, it is perfect as a useful gift for a loved one.

Xiaomi TDS price on the official website is 35 RMB or $ 5.30, or about 400 rubles. I bought a gadget in a major Chinese online store for $ 7.25. At first I wanted to post a link to the product, but then I changed my mind. The parcel took two months before me, so I definitely won't recommend such a store. In private, please.

Theory is important for everyone to know!

In general, Xiaomi TDS is called that for a reason. The name stands for Total Dissolved Solids and should be understood as the total amount of dissolved (in water) solids. Accordingly, the gadget measures this parameter.

The unit of measurement is usually the ratio of milligrams of various solids dissolved in one liter of water (mg / L).

In the case of our device, the unit of measure is ppm. It stands for the number of parts per million of water particles or in English parts per million (ppm). For ease of understanding, these two units of measurement can be equalized. They are really very close to each other.

Functional

Xiaomi TDS is a tiny and stylish device that allows you to determine the same amount of solids dissolved in one liter of water. Of course, the device can be wrong, but in most cases the error will not exceed two percent of the result. This is exactly what the manufacturer says.

The gadget is able to recognize the presence of the following substances in water: calcium, magnesium, zinc, chromium, lead, copper, heavy metal ions, ammonium acetate, various salts, organic compounds, and so on. All these substances in a certain amount can be harmful to our body.

As a reminder, right on the packaging from under the device there is a special scale, which can be quite guided by when measuring the purity of water.

• 0 - 50 - crystal clear water (after deionization, microfiltration, distillation, etc.)
• 50 - 100 - clean water (after coal filtration, from mountain springs)
• 101 - 300 - regular, heavy water
• 301 - 600 - high content of various solids, as a rule, drinking such water is already unpleasant
• 601 - 1000 - critical solids content - bad taste
• 1000 and above - unusable water

Unfortunately, the box and tiny instructions are all in Chinese. This is understandable, because the goods are sold exclusively in China, and it is no secret to anyone that in large cities there is a big problem with the environment. First of all, this concerns the cleanliness of the air and drinking water.

I translated the above scale armed with a Google translator and using a metric developed by the American health and environmental organization - Environmental Protection Agency (EPA).

It's very easy to use. We pressed the button, on the small LCD screen, the value of 0 ppm lit up, dipped it into the water, waited 5-10 seconds and it's done. While the device is in the water, it will show its current state, removed - the value has dropped. As you can see, everything is very accessible.

I tested several types of water that I found at home. And here's what happened.

• drinking water from an artesian well, purified, packaged in 19 liter bottles - 78 ppm
• Aqua Minerale still - 60 ppm
• the same, but already boiled water - 86 ppm

• tap water - 322 ppm
• orange juice - 1030 ppm

But the most interesting indicator was given by melt water - 12 ppm. I scooped up the snow for her in a glass right in the yard. So think after that what kind of water you need to use.

Specifications and design

The gadget is powered by two replaceable AG13 button batteries. It is gratifying that they are already included in the kit. The manufacturer was not greedy.

The batteries are hidden at one end of the "handle". In the middle there is a small monochrome display, and next to it there is a single "TDS" button.

At the bottom there are sensors covered with a transparent matte cap.

The large contact is responsible for measuring the temperature and its calibration (does not show), and two smaller "antennae" made of titanium take on the responsibility of measuring the solids dissolved in water.

The device is dressed in the form factor of an ordinary stationery marker. The case is entirely plastic, glossy, most likely, over time it will become covered with scratches and will look like a devil with horns. But beautiful! And it lies effectively in the box. What else do you need?

• model XMTDS01YM
• operating temperatures: 0 - 80 degrees
• dimensions: 150 x 16 x 16 mm
• weight 28 g

Of course, the gadget is resistant to water penetration according to the IPX6 standard. Hence, it doesn't matter how deeply you dip your "pen" into the liquid. The only thing I have not tried is to completely lower the device under water. I think nothing will happen, but still did not dare.

Outcome

Xiaomi TDS tester review The purity of the drinking water is quite short. On the other hand, what else can I say? A simple, useful thing in the household, which, let's face it, will lie in one of the drawers in your kitchen. I hope that I am wrong and will use this device myself from time to time.

Finally, useful information. Perhaps someone doesn't know. The Rospotrebnadzor Administration is responsible for the quality and safety of drinking water. It is the employees of this department who must conduct appropriate checks on the territory they control. Take the time to visit the local office website to inquire about the drinking water situation in your area. To do this, put the code of your region in front of the page name and search for the information you need in the site search. Example, 77.rospotrebnadzor.ru - the page of the Moscow Administration.

Instrument for measuring the purity of water is a new development of American scientists. Now it is in our country. After all, for every person it is vitally important what he eats. Including water, which is the basis of the mass of dishes or which we just drink. A device for determining the purity of water will allow you to easily, quickly and, most importantly, qualitatively determine whether it is worth using this water or not. What is the Water Checker device? It's a compact device that's easy to take with you wherever you go. The device operates on two finger-type batteries. To determine the degree of water pollution, you need to pour a few drops into a special tank and press one button. After a few seconds, the result will appear on the display as a numerical value and emoticons. After that, you will know exactly what kind of water is in this source, whether you or your loved ones can drink it. This is an especially indispensable thing for those who have children in the family, as they are more sensitive to various impurities in the water.

Features of the device for measuring water pollution

• Just one touch of a button is enough to measure the purity of tap water, from a filter, water from a reservoir, from a bottle or mineral water
• Determinant of the degree of water pollution Water Checker displays the measurement result with understandable icons in the form of smiles
• The result is displayed numerically on the LCD display
• The water tester is compact and waterproof
• Water Checker features low energy consumption
• The device is easy to operate

Instructions for using the device for measuring impurities in water

1. Fill the dedicated water tank to the marked level
2. Press and hold the measurement button until you hear a beep
3. After a few seconds, the water pollution tester will show the result on the display.
4. It is easy to understand the degree of suitability of water for drinking by one of the five smiles
5. You can interpret the numerical values ​​according to the table in the instructions.

Notes on using the instrument

• For greater measurement accuracy, it is necessary to clean the Water Checker from water droplets
• The amount of water must exactly match the level on the device, otherwise the readings will be inaccurate

Technical characteristics of the device for measuring the degree of purity of water Water Checker

Standalone water purity control device EL-1105

A unique device will allow you to determine the level of impurities in any water in a few seconds and will give you recommendations for its use. Water from tap water, reservoirs, bottled, etc. water in different parts of the world have different purity indicators. Wherever you are: on a trip, on a business trip, on a hike or in the country - you can assess whether you drink this water or not.

The level of impurities is defined as (TDS - Total Dissolved Solid) and refers to the concentration of insoluble substances distributed in water. Measured in ppm. The measurement table of the device is given below.

Measurement range, ppm	Error,%	Reading accuracy, ppm
0...100
101-200
201-500
501-999

Beginning of work.

1. Install 2 AAA cells according to the polarity.
2. Fill the container up to the test mark with water.
3. Press and hold the button until you hear a beep.
4. The results will be shown on the display.

Water tester elements:

1. Sensor contacts
2. Water tank
3. minimum filling level
4. Display
5. Frame
6. Test start button
7. Waterproof gasket

Correspondences of impurities (TDS) and icons:

0-30 - Very clean water

31-100 - Pure water

101-200 - Normal water

201-300 - Water not recommended for consumption

301-999 - This water cannot be drunk!

Table of TDS values ​​for standard water types:

Distilled water	High purity potable	Mineral	Tap water	Water of rivers, lakes
0 - 30	31 - 100	40 - 120	50 - 250	200 - 600

Attention!Some types of quality mineral water contain insoluble saline

leftovers.

The test result for this water can give a highly negative result. This is not a contraindication to drinking - however, you must be sure that this mineral water is genuine and not artificially mineralized.

Country of origin: USA

The quality of the water consumed by humans is constantly monitored.

The parameters that water must meet are set by the current SanPiN, as well as by order No. 162 / pr, issued on 04/04/14 by the Ministry of Construction of the Russian Federation.

In order to determine the above indicators, special devices are used. Some of them are discussed in this article.

Oximeters

This is the name of devices that allow you to determine the physical content of oxygen dissolved in water. Depending on the model, the devices are used both in industrial enterprises and in personal plots.

The most popular in our country today are the models listed below.

Extech DO600 +

A kit that includes a waterproof device. The product is designed to measure the degree of concentration of oxygen dissolved in water, both in laboratory and in the field. The design of the gas analyzer is equipped with a 5-meter extension cord and has a special weighted protective mount. This allows you to determine the desired indicators in open water bodies and in vessels. The oxygen level can be determined both as a percentage (0-200) and as a fraction of concentration (0-20 mg / l). The device has a built-in function of adaptation for the height of the measurement site (0 - 6096 m) and salinity (0 - 50 * 10 -3).

The product has a built-in memory that allows you to save the results of the last 25 measurements. If during operation an increase in the consumption of the built-in battery is observed, the device automatically performs self-calibration.

According to the requirements of the current standards, the water resistance of the device must be at least IP57. The standard equipment of the device includes:

• DO - electrode;
• membrane spare cap;
• touch protective cap;
• electrolytic batteries of autonomous power supply 4 * 3V type CR2032;
• carrying strap.

The dimensions of the device are 36 * 176 * 41 mm. Weight 110 g.

The device is designed to measure the indicators of oxygen dissolved in water, as well as to diagnose the suitability of a particular reservoir for fishing and fish farming.

Another direction of using the device is to clarify the sanitary state of natural and artificial reservoirs from the point of view of protecting the natural environment by such an indicator as the level of oxygen dissolved in water.

Measurements are required to be carried out at regular intervals. This is due to the fact that the concentration of oxygen in water is a variable value (depending on the water layer, season, time of day, etc.).

Measurements can be made in percent, mg / l or ppm.

Before starting work, the device is calibrated against ambient air.

Multi-parameter device U-50 for determination of water quality

This series of portable analyzers is capable of simultaneous measurement and display of up to eleven parameters. Easy-to-use and reliable design makes the devices of this model range among the most effective for monitoring groundwater, drainage channels and open water bodies. The instrument has intuitive menu systems.

All analyzers of the specified model range have sensors and a built-in control unit. The device provides a wide range of functions to choose from. The length of the connecting cable is about 10 meters, which allows measurements at different depths. The built-in GPS navigator shows on the map the point at which the measurements are taken.

The measurement results are entered into memory and can be processed by a PC using a special program. The device allows you to perform the following measurements:

• pH (mV), pH (pH);
• redox (ORP) potential;
• (COND) - electrical conductivity;
• (OD) - dissolved oxygen;
• (TDS) - the total content of solids dissolved in water;
• (SAL) - mineralization, expressed by electrical conductivity;
• (SG) - specific gravity of sea water;
• (TURB) - turbidity (an LED is used as a light source, the method of light scattering forward at 300m);
• (TEMP) - water temperature;
• (DEP) - depth of measurement.

The advantages of the device:

• compactness;
• the ability to work at different depths;
• user-friendly interface;
• fast stabilization of the readings;
• the display can only display the readings of the required measurements;
• making measurements in various units;
• a significant period of operation from autonomous power sources (up to 70 hours);
• ease of installation and replacement of the required sensors;
• the ability to perform calibration not only in manual, but also in automatic mode.

Chlorimeter CL200 +

Used to make highly accurate measurements of chlorine in water.

The main advantage of the device, due to the use of a number of innovative solutions in its design, is a much wider measurement range (0.01 - 10 mg / l) and the multifunctionality of the product, which allows you to measure the pH, as well as the redox potential of the tested water.

The scope of the device: measurements to determine the content of chlorine in water, pH and ORP in boilers, swimming pools, aquariums, water treatment systems, etc.

Design features:

• all measurements are performed digitally. Their results are not influenced by the evaluation of the measurement of turbidity and chromaticity;
• use for all measurements of only one chemical reagent ExTab and the minimum time required to obtain a result;
• convenient LCD screen;
• the presence of a built-in microprocessor;
• auto-calibration, memory, automatic shutdown, battery level indicator;
• availability of three different replaceable electrodes for ORP, pH and Cl;
• waterproof case;
• a set of accessories necessary for operation (flasks and holders for them, buffer solutions, reagent);
• analysis for chlorine is performed using several parameters at once: analysis for the presence and concentration of hypochlorite (OCL-), free chlorine (CL2), chlorine nitrides.

Working parameters:

Salt meter (TDS meter) TDS - 3

Designed to determine the hardness of water. Used to analyze the presence of salts in water. The device allows you to measure the conductivity of water, the degree of its purification and quality.

This salinometer measures the amount of solids dissolved in a fixed volume of water (Total Dissolved Solids).

The capabilities of the device allow you to quickly determine the temperature of the water, its quality and hardness, regardless of the source from which the sample was taken.

Allows you to calculate the amount of metal salts dissolved in water.

Water is the source of life on our planet. And human health largely depends on its quality. This explains the importance of controlling the quality of the water you use.

Water Quality Tester TDS Meter- a water purity control device TDS meter will allow you to quickly determine the level of impurities in waste, natural and tap water

Description:

The water purity control device will allow you to quickly monitor waste, natural and tap water. In just a few seconds, it will determine the level of impurities in the water and give you recommendations for its use. Ideal for testing water treatment systems. It will allow you to provide yourself with the best quality water. Just remove the protective cap and immerse the device in water for about 10 seconds - the measurement result will be displayed on the digital display. To replace the batteries, pull the cover on the upper end part of the device until the battery compartment is displayed.

The level of impurities is defined as TDS (Total Dissolved Solid) and refers to the concentration of insoluble substances distributed in water. Measured in ppm.

• Hold function - saving measurement results for easy reading and writing.
• Auto-off function: if the device is not in use, it turns off automatically after 10 minutes.
• Automatic function - measurement is interrupted after 3 minutes if conditions do not change.
• Built-in sensor for automatic temperature compensation (1 to 50 ° C).
• Measurement of high salinity - if the salinity of the sample exceeds 999mg / l, the X 10 icon starts flashing on the display.

Correspondence table of impurities (TDS) and water quality:

Table of TDS values ​​for standard water types:

ATTENTION!

1. Some types of quality mineral water contain insoluble salt residues. The test result for this water can give a highly negative result. This is not a contraindication to drinking, however, you must be sure that this mineral water is genuine and not artificially mineralized.

2. The device does not provide chemical, toxicological and radiation assessment of water. Use suitable instruments to control such water.

Specifications:

Material: ABS, metal.

Dimensions: 142x25x15 mm.

Power supply: 2x1.5V.

Mineralization measurement range: 0-9990 ppm (mg / L).

Resolution: 1 ppm (0 ~ 999 ppm), 10 ppm (1000 ~ 9990 ppm).

Accuracy: ± 2%.

Automatic shutdown: 10 minutes.

Color: blue.

Weight: 36 g.

Manufacturer: Taiwan.

You can buy Water Quality Testing DeviceTDS meter with courier delivery in Moscow, placing an order through the basket.

To purify water in everyday life, all kinds of purification filters are often used. But in order to make sure that the water is free of harmful or unnecessary impurities, it is useful to use a special water tester - this device will help not only to check the water for drinking, but also to carry out its chemical analysis. Based on the results of such an analysis, showing the level of contamination of the liquid and revealing its composition, it is possible to choose a method for purifying the water.

Clean drinking water must meet state standards for a number of indicators:

1. Oxidation-reduction potential of a liquid. This figure should be in the range of 50 to 100 millivolts. Otherwise, the body will spend a lot of resources in the process of restoring the redox potential.
2. The pH should be neutral (mark 7.0). In this case, a slight presence of alkali is permissible, but there should be no oxidation at all.
3. Water hardness should be at an average level. Soft water, along with hard water, is unacceptable for consumption.
4. The presence of minerals and salts should not exceed the norm. Excess of these substances damages the kidneys. Their low content is also not useful - the body in this case will experience a deficiency of essential salts and minerals.
5. The norm of the indicator of the surface tension of water is 73 dynes / cm. This water is easy for the body to absorb.
6. In addition to the above, drinking water should not contain heavy metals, nitrates, nitrites, chlorine and organic compounds of any kind.

Ordinary personal water filters are short-lived - over time, they begin to let in harmful substances and the water acquires an unpleasant odor, most often - hydrogen sulfide, sewage, or chlorine. But not always the harmful substances contained in water can be easily detected using the sense of smell, then an aqua tester comes to the rescue.

This device can be simple, pocket-sized, or a complete set for complex liquid analysis. If you have a pool in a country house or in a country house, you will need a special set of testers to check the pool water for the content of chlorine and bromine in it, as well as to analyze the pH level.

Working principle and characteristics of the water tester

This portable device has a rather narrow functionality - it calculates the number of heavy particles in PPM - ("par per million" - "parts per million") from 0 to 1000, and sometimes up to 10,000 (the higher this indicator, the more water pollution ). The norm is from 100 to 300 PPM. The measurement result is shown on the display.

The pocket-sized device is no larger than a thermometer, it is easy to use together with a portable filter, especially on the road. It takes only 5 minutes to determine the composition of the water.

A water test kit is more complex than a pocket tester. It is a set of reagents that allow, like an indicator, to test the water.

Types of aqua testers

Monoparametric. The analysis is carried out according to one specific parameter:

• pH level;
• the amount of salts;
• hardness level and so on.

Multiparameter. Several types of analysis are performed:

• chemical,
• optic,
• electrochemical,
• chromatographic,
• photochemical.

Also, testers differ in the type of analyzed water:

• tap,
• ground,
• from an artificial reservoir,
• technical and waste water.

Aquatesters are also distinguished by the way they are used:

• portable;
• stationary (installed in water pipes, provide an hourly report on the state of the water).

The best testers for testing water - rating of the highest quality models from popular manufacturers

This will include budget, inexpensive and mid-priced pocket testers, as well as devices and kits for analyzing pool and aquarium water.

API Freshwater Master Test Kit

Inexpensive kit for testing the water in the aquarium, it is a mini-station for the analysis of liquid. It is especially necessary for large aquariums, using special tests to determine the suitability of the water for the fish living in it. The kit shows the presence of ammonia, the pH level, the presence of nitrites and nitrates, and also gives a signal that it is time to change the water to fresh. The average cost is 386 rubles.

Advantages:

• the kit is designed for 400 tests;
• simple and straightforward instructions.

Disadvantages:

• lack of a large flask.

Xiaomi Mi TDS Pen

A very popular and inexpensive model of a water tester. This device detects the presence and measures the amount of harmful substances contained in the water: heavy metals, inorganic salts, organic compounds. Outwardly, the device looks like a thermometer, in the upper part of which there are batteries, and in the lower part there are two titanium probes. To perform a water analysis, you just need to lower the tester into a container with water - the analysis result will be displayed on the display. In this case, the device takes into account the temperature of the water. In addition to testing drinking water, this tester can be used to analyze aquarium and pool water. The average cost is 500 rubles.

Advantages:

• ease of use;
• small size;
• affordable price;
• practicality;
• accuracy of measurements;
• nice design;
• good build quality.

Disadvantages:

• does not perform a complete analysis of water;
• lack of display backlighting.

ZeroWater ZT-2 Electronic Water Tester

Another budget model with basic functionality, well suited for home testing of drinking water - the TDS range has been reduced to 999 PPM, which allows you to control the quality of water at a household level. Despite its modest capabilities, the tester does its job well, besides, it is distinguished by its reliability and durability. The average price of the device is 693 rubles.

Advantages:

• accuracy of measurements;
• simple control;
• profitability.

Disadvantages:

• low quality materials.

HM Digital TDS-EZ Water Quality TDS Tester

A very popular pocket aqua tester model with a lot of positive user reviews. The device is of high quality and reliability, has a wide PPM range, which allows for a fairly accurate water analysis. Average price - 819 rubles.

Advantages:

• reliability;
• good quality;
• the accuracy of the analysis.

Disadvantages:

• high measurement error.

HM Digital TDS-4 Pocket Size TDS

A simple yet accurate pocket tester with a PPM measuring range of 0 to 9990. The norm for drinking water is 100-300 PPM. The control is simple and convenient, the device is also able to "memorize" the readings. This tester can also be used to test the water in the aquarium. Average price - 1,008 rubles.

Advantages:

• high quality workmanship;
• the accuracy of the analysis;
• easily identifies low-quality water;
• portability.

Disadvantages:

• too small display;
• small functionality;
• inaccuracy of measurements.

Digital Aid Best Water Quality

A high-quality aqutester model, complete with a storage case, which is convenient for those who are often on trips. Measuring range 9990 PPM, high performance, nice design. The tester is equipped with a convenient display with a mode for storing and comparing analysis results. Average cost - 1,010 rubles.

Advantages:

• high quality of work;
• modern design;
• extended functionality.

Disadvantages:

• not found.

Poolmaster 22260 5-Way Test Kit with Case - Basic Collection

Best-in-class pool water testing kit. Allows you to comprehensively examine water for the presence of substances harmful to the body. The tester is a set of vials with chemicals and reagents; the kit also includes a test tube, flask, instructions for use. The kit allows you to check the water for the content of chlorine, bromine, determine the pH level. Average cost - 1,071 rubles.

Advantages:

• simple and straightforward instructions;
• accuracy of readings;
• good build quality.

Disadvantages:

• fragility.

AquaVial Water Test Kit for Bacteria

Kit for determining the presence of bacteria in water. In open water bodies, the greatest danger is not so much heavy metals, but bacteria and fungi, for the detection of which a special kit is required. In addition to checking the pool with this tester, you can analyze the water after the filters. Average price - 1,134 rubles.

Advantages:

• multifunctional set;
• the accuracy of the analysis;
• wide functionality.

Disadvantages:

• does not provide information on water hardness;
• no cover included.

Watersafe WS425W Well Water Test Kit 3 CT

A very simple aqua tester, perfect for home use. It is a set of tester strips that, when interacting with water, become a certain color, signaling the state of the liquid. The instructions included with the kit detail the meaning of each color. This type of aquatester is convenient for quick analysis of water, it is designed to detect metals, but in addition it is able to detect the presence of bacteria and pesticides. The average cost of the device is 1,323 rubles.

Advantages:

• versatility;
• the speed of obtaining the result;
• ease of use;
• able to detect organic matter.

Disadvantages:

• high price;
• quickly consumed;
• not suitable for pool water research.

Criteria for choosing an aquester

Since household filters are not enough to gain firm confidence in the purity and safety of drinking water, it becomes necessary to purchase a tester. What is the best tester to get? It all depends on what kind of tasks are assigned to this device.

If you suspect that the water is hard, it is best to purchase a TDS-3 Salt Meter. The device will quickly and accurately calculate the amount of salts in the liquid.

For a comprehensive check of the condition of water, it is best to give preference to a universal device that examines a liquid by 11 of the most important parameters - a multi-parameter tester, for example, U-50. Any model from this series is distinguished by high efficiency, convenient operation (built-in control unit) and accessible instructions. In addition, multivariable water testers of this series are able to memorize the analysis results, which are then easily entered into a personal computer and thus monitor the state of water quality, monitor possible changes in its composition.

If it is necessary to determine the presence of chlorine in water, then for such a case it is necessary to purchase a special CL200 + chlorimeter. This device has a wide measuring range - from 0.01 to 10 mg / l, which allows you to accurately examine highly chlorinated liquid. In addition to the main function, the device is able to determine the pH and ORP level not only in domestic water, but also in any artificial reservoir - an aquarium, pool, boiler, and so on. In addition, the device is economical, since a universal chemical reagent ExTab is used for any analysis. Measurement results are displayed in digital format.

A special oximeter is designed to detect and calculate the concentration of oxygen (O2) in water. For home use, it is best to purchase the Extech DO600 + and the AZ8401 model. Both instruments are a gas analyzer capable of conducting research in an open well of any depth and in a closed sealed vessel. What is the difference between them? The first option - Extech DO600 + - is used not only at home, but also in production.

The built-in memory of the device allows you to save the analysis results and subsequently compare them with each other. The number of reports that can be saved is 25. The second option, AZ8401, is designed to detect and calculate the amount of oxygen not only in ordinary drinking water, but also in any body of water, including natural (for example, in order to determine whether a given reservoir is suitable for fishing, or breeding in it fishes). It should be added that the O2 measurement is best done regularly, since the oxygen concentration is subject to constant changes depending on weather conditions.

To maintain and maintain the health of the body, it is necessary to use and consume only clean water with a normal content of salts and minerals. Therefore, the aquatester is one of the most necessary devices in everyday life, because thanks to this compact, simple device, you can easily determine the state of drinking water, aquarium water, swimming pool and even a natural reservoir. Based on the results of analysis or regular research and observations, it is possible to identify the problem and take measures aimed at purifying the water and protecting the body from the effects of harmful substances.

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