The problem of clean water is present in almost every home. Someone buys and installs special filters, and someone just wants to check the condition of the liquid, so they buy a water tester. This device makes it possible to find out if the water is suitable for home use and whether cleaning is necessary.
Tester's Tasks
Today, a water tester is not such a popular device, since personal filters can also control the quality of water. But it is worth noting that it will not be possible to find an ideal model among these filters, because they all collect particles on themselves. solids after prolonged use, which may soon get into the water. The most commonly hit people are those who use cheap filters that fail from day one.
If suddenly the water has found suspicious bad smell and color, then a water quality tester will help you to find out exactly about its problem. As a rule, there is a sewer smell, a taste of chlorine or rotten eggs, but people rarely pay attention to this.
Principle of operation
The water tester is designed to measure the amount of heavy particles in a liquid (PPM from 0 to 1000). The higher the value, the more dangerous water for application. The permissible norm is PPM from 100 to 300.
Filters can only clean up to a level of 0-50. If the level reaches 600 PPM, then the water will taste strange.
Top Models
A water tester will help to check the quality of the filter. Any model from the below will serve its owners for many years without problems. With such devices, you can easily find out the state of drinking water, liquid in a pool or aquarium.
Xiaomi Mi TDS Pen
One of the most famous and respected is the Xiaomi Mi TDS Pen Water Tester. Despite the fact that initially this production was exclusively engaged in the production of software and smartphones, today you can find excellent devices for home use under its brand.
Xiaomi is a water quality tester, which has long become a necessary device for people living not only in large cities, but even in the villages. The device determines the content and amount of such substances:
- heavy metals - copper, zinc, chromium;
- organic components (ammonium acetate);
- inorganic salts (calcium).
The water tester, the cost of which reaches 500 rubles, measures everything as accurately as possible. That is, if it shows a value of 250 PPM, then this means that in millions of particles there are exactly 250 particles of unnecessary substances that worsen the condition of the liquid.
The excellent Xiaomi water tester is capable of measuring quantities ranging from 0 to 1000+ PPM. It is not so difficult to decipher the result obtained:
- from 0 to 50 - ideal pure water;
- from 50 to 100 - a fairly clean liquid;
- from 100 to 300 is the usual allowable rate;
- from 300 to 600 - hard liquid;
- from 600 to 1000 - rather hard water, which is practically undrinkable, although the risk of poisoning is low;
- more than 100 PPM - liquid hazardous for use.
Find a use for the analyzer High Quality easy enough. Most often it is used to check the quality of water, where the filter has already worked. Xiaomi TDS is a water tester that allows its owners to know in time about bad job cartridges and replace them.
It resembles the most common electronic thermometer, which is closed on both sides with special caps. At the top are the batteries, which are included in the kit, and at the bottom are two titanium probes.
You can turn the device on or off by pressing a single button. To analyze a liquid, the device must be lowered into a container with water, and then pay attention to the display, which is located on the side and displays the result.
You can also calibrate the device without special efforts... To do this, you can take water for injection, sold in pharmacies. It is always ultra-pure and therefore perfect as a reference for calibration.
Before measuring, it should also be remembered that the result is influenced by the temperature of the liquid. In order to take this parameter into account, the device is able to measure the degree of water heating.
Reviews
Many buyers who regularly use the device already have enough long time, claim that it is practically perfect. There are, of course, some disadvantages in it, but it is absolutely not necessary to take them into account, since they are insignificant.
The device is perfect for those who want to control the quality of the liquid they use, as well as the water in the pool, aquarium, and so on. People speak positively about the good work of the tester. After all, there is no need to press too many buttons and carry out many actions, but just press one button, lower the device into water and see the exact value.
Watersafe WS425W Well Water Test Kit 3 CT
When it becomes necessary to quickly test drinking water, this device will come to the rescue. Unlike the previous model, this device cannot tell about the quality of the liquid in the pool, but it copes with its main task elegantly.
Such a tester will be interesting for both adults and children, because it is made in the form of strips. They work according to the principle of a focus for children, where litmus sticks are required. When the tester is immersed in water, it turns into a certain color, by which you can understand the state of the liquid.
The tester is designed to detect metals, although it even copes with bacteria and pesticides. A generic product is consumed quickly, so people have to regularly spend money on it. Although in fact, the cost is not that high - about $ 21.
Customer opinions
First of all, people who have used the tester at least once note the convenience and quick results. Unlike other similar products, these strips show the result literally in 20-30 seconds, which really pleasantly surprises consumers.
Users claim that thanks to the device, they constantly check the status of their filters and their operation. This makes it possible to always drink only clean water and be completely protected from all kinds of ailments that a person may have due to the use of poor-quality water.
HM Digital TDS-4 Pocket Size TDS
The simple and accurate portable tester, which costs up to sixteen dollars, became a real bestseller literally a day after its release. Despite the fact that most often people pay attention to devices famous brands(for example, Xiaomi), the tester from the Digital brand conquered with its quality of work and an affordable price of buyers.
His device is capable of measuring the level up to 9990 PPM, since this indicator is already huge in order to recognize a low-quality liquid.
What users say
This device, which can be easily put in your pocket and taken with you on trips and hikes, receives positive reviews in its address all the time. It, like both previous models, is easy to use, has affordable price and does a great job.
People buy a tester to test their drinking water, although it actually does a good job with the liquid in the aquarium. Owners of small fish do not want their pets to feel bad, so they are very happy with such an excellent device that makes it possible to enjoy life.
Other models
In addition to those listed above, there are several other good models:
- Digital Aid Best Water Quality. The $ 16 device has a maximum 9990 PPM, high performance and a chic shape of the device. In addition, the tester not only determines the new result as accurately as possible, but also remembers several previous ones, which makes it possible to compare the indicators.
- HM Digital TDS-EZ Water Quality TDS Tester. Among the best pocket devices, one cannot fail to note the model, which costs 13 dollars. Far from being the most budgetary device, it has been on the market for a long time, so buyers can be sure of its quality. The device boasts a good PPM range (0-9990), which allows you to speak only positively about it.
- ZeroWater ZT-2 Electronic Water Tester. The device for only $ 11 comes in handy in cases where the owner of the filter forgot when it needs to be replaced. The measuring range (0-999 PPM) is quite enough to see the quality of drinking water. The tester works quite well, but it is not intended for daily use.
All of them are also popular and have great amount positive feedback. The only problem is that they are not available in every city. Although the quality of their work is really high.
- Automatic shutdown after 2 min
Weight, g:
Size, mm:
Country of origin:
Compatibility Batteries AG13
Buy original Xiaomi Mi TDS Pen water quality tester wholesale You can purchase useful little things Xiaomi Mi wholesale. To find out the wholesale prices for the TDS Pen, send a request to the corporate sales department. If you want to make a corporate order, you also have additional preferences available. Favorable delivery of your order throughout Russia.
Water is the source of life, however recent times its quality is poor. If you care about your health and the health of your family, then you just need to buy the Xiaomi Mi TDS Pen Water Quality Tester. With this small electronic gadget, you can perform advanced water analysis just like in a professional laboratory.
Features and Benefits of Xiaomi Mi TDS Pen Water Quality Tester:
- Simple and straightforward to operate. All you need to do is simply immerse the tester, up to the indicated mark, in a container of water. The result will be displayed on the scoreboard for three seconds. The button on the body of the device is designed to turn the device on and off.
- Precise definition all harmful impurities. The device will indicate the percentage of minerals and salts, and also warn about exceeding their norms.
- Compact and lightweight. The size of the gadget is slightly larger ballpoint pen, and the weight does not exceed 30 grams. You can easily take the tester with you on vacation and business trip. Now avoid poisoning while traveling and in Everyday life it will be much easier.
- Does not require recharging. Powered by batteries that can be replaced in less than a minute.
Everyone knows the proverb: "Forewarned is forearmed." If there is no way to influence the quality of the water, then you should at least be aware of its composition. Take care of your health today with the TDS Pen Tester. Check the water you drink and draw conclusions accordingly.
For people who care about their health, Xiaomi has developed a rather simple, but at the same time very useful device- Xiaomi Mi TDS water tester. The compact measuring device is able to show how much the water you drink matches generally accepted standards mineralization.
Equipment
The Xiaomi Mi TDS Pen water quality tester comes in a regular cardboard package with the MI logo on the front, instructions on the back, and on the right side there is all the technical information, albeit in Chinese.
In addition to the device itself, the box also contains an incomprehensible insert with hieroglyphs.
The inner packaging is quite tight and reliably protects the device during transportation.
Appearance
MI TDS looks like a thick marker or a pen with caps on both sides.
There is a battery compartment under the upper cap, and water quality sensors under the lower cap.
Also, the lower cap is a container for sampling the tested liquid (natural or purified water).
On the front there is a liquid crystal display to show the results obtained, as well as a button with an engraved TDS that activates the test run.
The body of the device is plastic and glossy. Hides fingerprints due to its coloring, but is prone to micro-scratches.
Specifications
Weighing in at 27.4 grams, the Xiaomi Mi TDS (xmtds01ym) has a fairly compact size, which is 150 x 16 x 16 mm.
The working temperature ranges from 0 to 80 degrees Celsius.
It uses two AG13 batteries with a total capacity of 160 mAh for power.
The measurement scale is in the range from 0 to 9990 PPM (mg / 1L), and the error, according to the manufacturer's assurances, does not exceed 2%.
Instructions for working with Xiaomi Mi TDS Pen
To measure the salinity of water, you must pour it into any container or cap measuring instrument and place the gauge sensor in them.
According to the table, you can calculate how suitable this water is for everyday use:
- 0 - 50 ppm - maximum purified water by distillation, microfiltration or other purification methods. It is highly discouraged to drink such water, as it will simply wash the existing salts out of the body;
- 51 - 100 ppm - high-quality water that has been cleaned with household filters or water from mountain springs;
- 101 - 300 ppm - not very “clean” water, drinking of which is quite acceptable;
- 601 - 1000 ppm - excess of minerals, which can affect the taste of water;
- more than 1000 ppm - unsuitable for frequent drinking water.
As a test, the content of minerals in the water with which one has to come into contact was measured most often.
Test results:
- water from the column near the iron ore quarry - 339 ppm;
- water from a column away from an iron ore open pit - 275 ppm;
- tap water - 197 ppm;
- tap water through a filter in a decanter - 176 ppm;
- tap water through a reverse osmosis filter with mineralization - 87 ppm;
- tap water through a fully purified reverse osmosis filter - 56 ppm;
- distilled water - 9 ppm;
- drinking water from the store - 87 ppm;
- mineral water from the store - 2530 ppm.
As you can see, mineral water has a surplus of all kinds of elements that, with prolonged use, can negatively affect health (hair loss, damage to teeth, nails, etc.). This can be observed in people who returned from mineral resorts and for 7-10 days drinking too much of this useful (up to a certain point) water.
What you need to know about the total mineralization of water?
Total water salinity (TDS) is a measure of the amount of substances dissolved in water, both inorganic and organic.
Most of this indicator is made up of inorganic substances - salts of calcium, magnesium, potassium and sodium in the form of bicarbonates, chlorides and sulfates, existing in water in the form of ions.
The more ions there are, the greater the current between the electrodes immersed in water. This is how the Xiaomi Mi TSD Pen works.
In the USA, this value is called Total Dissolved Solids (TDS) - total amount dissolved solids.
Therefore, the device can be called a TDS meter or a salt meter.
The unit of measurement of the TDS meter is the number of milligrams of salts per 1 liter of water - mg / l, or ppm (parts per million) - 1 part of a substance per million parts of water.
In practical calculations, 1 mg / l = 1 ppm.
It is important to understand the difference between total water mineralization (TDS) and water hardness.
"Water hardness" is part of the total mineralization, due only to calcium and magnesium salts (without sodium, potassium and others).
In this case, the "hardness" of water consists of two parts - temporary (removable) and permanent (irreparable).
Removable "hardness" - goes away when boiled - turns into insoluble scale (due to hydrocarbonates), irreparable (permanent) - does not go into scale (chlorides and sulfates).
The degree of “disposable hardness” of the water you are using is easy to determine: measure the TDS “before” and “after” boiling. It is desirable that the temperature of the test water is approximately the same (if your device does not compensate for the temperature). The difference in measurements will be an indicator of "disposable stiffness".
The standards given in the instructions for TDS meters refer only to "drinking water", without affecting the range of the so-called. "Mineral waters", the degree of general mineralization of which is incomparably higher.
For Russia, the permissible TDS of drinking water is 500 mg / l, for the USA - 1000 ppm (mg / l), in Ukraine, drinking water with a total mineralization of 100 to 1000 mg / l is recognized as physiologically high-grade.
It is this water, the TDS of which does not exceed 1000 mg / l, is called fresh.
You need to know this and do not panic when your device, inserted into a container with an elite "mineral water", shows values from the "unsuitable" zone for drinking water. It should be so, and will only confirm the fact that what more degree mineralization of the mineral water you use, the less it is suitable for constant (continuous) use. Such waters are used in short courses for special medical indications.
Separately, I would like to warn the owners of complex treatment systems against drinking water of very low mineralization (from 100 to 50 and below mg / l). Systematically drinking this almost "distillate", you grossly disrupt the water-electrolyte balance in your body, which is fraught with serious health problems.
Outcomes
Thus, if you are not indifferent to what you drink, the Xiaomi Mi TDS Pen Tester may turn out to be irreplaceable assistant... This device can be purchased at a price
Good day, dear readers,
This review is dedicated to another water hardness tester (TDS tester) from famous company Xiaomi.
Who cares - welcome under the cut
So what is it?
This device measures the hardness of water. There are several buts. This is not a laboratory device, and the measurement is based on measuring the resistance of water, but it is measured by a TDS device, which stands for Total Dissolved Solids - the total content of dissolved solids. Some people call it a "salt meter" because salt fits perfectly into what the device measures.The lower the reading of the device, the better, the units change from 0 to 1000, but when the reading is more than 1000 (units per million particles), it is not recommended to use water.
Let's start
The device comes in a small cardboard box. This is not a grandiose packaging like a piston, but stylish, it's not for nothing that some people call Xiaomi the Chinese Apple.
The device looks very simple, but made with high quality. There is a company logo on the battery compartment cover, and the measurement contacts are under another matte cap.
The device is sold with preinstalled batteries.
Contacts that make the measurements themselves. The manufacturer claims that they are made of titanium (let me remind you, he is doing especially well with oxidation) and there is also thermal compensation. If it is, then it happens "behind the scenes", since the screen shows only the data of this very TDS.
Comparison with handles will give an idea of the size of the device. The screen is small, but the numbers are clearly visible even at an angle. The only button turns the device on and off - a short press turns it on, a long press turns it off.
Some measurements.
It is extremely simple to measure - we dip the contacts in water and the measurement result appears on the screen almost immediately. The results "float", but only by plus or minus 5 units, at least this is how it happens with my device.- Water in the tap in the office where I work - 480
Water in the filter-cooler in the office (checked on several floors in different coolers) - 320-360
Water in the tap at home (I live in another city, not where the office is, by Israeli standards far away) - 180
House water after Brita filter - 160
Water after the filter built into the refrigerator (something with coconut fibers..) - 170
Mineral water Neviot - 220
Conclusions, results
Well, personally, I am very pleased with the device, if only because now I can know when to change filters, not only by the calendar, but also by the quality of the water itself. Well, over time I will select mineral water with the lowest TDS.Thank you for the attention.
Offers? Remarks? Criticism? Please write, I will be glad to help.
The product is provided for writing a review by the store. The review is published in accordance with clause 18 of the Site Rules.
I plan to buy +65 Add to favourites I liked the review +14 +46Xiaomi Mi TDS pen Is an irreplaceable, easy-to-use and very useful device for systematic control of water quality
Allows you to test your water at home to make sure the water needs to be cleaned.
Outwardly, the device looks like electronic thermometer... But in addition to temperature, it is able to measure the content of heavy metals in water, organic matter and water salinity in general to assess its overall purity.
What is the quality of the water at home? Test before use!
Initially, xiaomi is engaged in the production of software and smartphones, but I quickly realized that all sorts of technology brings good profit went to create devices for the home. In this review, consider interesting thing- Xiaomi Mi TDS water tester pen. Alas, today this device can be considered a necessity for residents of large cities.
We cannot figure out the purity of drinking water with the naked eye, seemingly in crystal clear water
contains many impurities, the TDS value represents the total soluble solids in water, Mi TDS can reflect the quality of the water to a certain extent. Typically, a lower TDS value indicates less water-soluble heavy metal salts, thus cleaner and better water quality. The Mi TDS Pen detects the water quality and can accurately determine the TDS value of the water.
Xiaomi Mi TDS Pen, despite its functionality, has reasonable price when buying in the online store.
What is Xiaomi Mi TDS Pen?
The water contains substances for measuring the total mineralization of water (TDS - total dissolved solids). This means that thanks to the device it is possible to find out whether and in what size the water contains:
- heavy metals (lead, chromium, copper, zinc);
- inorganic salts (magnesium, calcium);
- organic compounds (ammonium acetate).
- The measurement of the total salinity of water occurs in a few parts per million or ppm (parts per million).
The World Health Organization (WHO) recommends:
- TDS values below 600 mg / l are generally considered good quality water and recommend drinking
- When the TDS value exceeds 1000 mg / L, there will be a significant change in the taste of the drinking water.
To clarify: if the xiaomi Mi TDS pen shows us 250 ppm, this means that millions of water particles contain 250 molecules of unwanted substances. By the way, this is a normal result, relatively safe for the body.
The xiaomi Mi TDS pen water analyzer can take measurements in the range of 0 to 1000 ppm.
There is a special Table for decoding the measurement results:
- 0-50 ppm (mg / l) ultrapure water (distilled if possible);
- 50-100 ppm (mg / l) - pure (filtered) water;
- 100-300 ppm (mg / l) - ordinary (tap) water that has undergone initial purification;
- 300-600 ppm (mg / l) - hard water;
- 600-1000 ppm (mg / L) - Hard water is undrinkable, but not poisonous;
- 1000 ppm (mg / L) is the hazardous liquid value.
Who can use the xiaomi Mi TDS Pen?
This one is pretty easy to find practical use water analyzer. The most obvious option is to use a tester to check the quality of the filtered water. This is due to the Xiaomi Mi TDS handle, you can simply replace the cartridge in a filter jug or a reverse osmosis filter.
The fact is that cartridge manufacturers always give recommendations when you need to replace this accessory, but practice (and the tester) shows that the sellers of cartridges care too much about their pockets. Sometimes when using a cartridge, even twice its shelf life, the xiaomi Mi TDS pen shows quite normal ppm values of water. At the same time, the recommendations of the filter manufacturers are obvious: the more often you replace the cartridge, the more more money will fall into their accounts.
You can check with xiaomi Mi TDS ordinary pen tap water and water from open reservoirs. In any case, the manufacturer positions the device as universal. But it is worth considering that if tap water first goes through a certain amount of cleaning and is conventionally considered good for drinking, then water from wells, rivers, lakes and other sources can include a bunch of organic and inorganic substances, bacteria and impurities, which will not be detected in the analyzer... As a result, the tester will give a good result, but the water will not be drinkable. For this reason, it is impossible to consider the Xiaomi Mi TDS pen a versatile tool.
Who Else Needs a Water Test Tool and Why:
- those who live in areas with very hard water, the consumption of which leads to the formation of kidney and bladder stones;
- before pouring water into the iron;
- aquarists add only the right water, free of hardness salts.
Xiaomi Mi TDS water tester device
The Xiaomi Mi TDS handle resembles a conventional electronic thermometer, which is closed on both sides of the lid. On the one hand, the lr44 batteries are inserted into the device (they are included in the kit), and on the other, there are 2 special titanium probes. Titanium provides corrosion resistance of the instrument and high precision.
The analyzer is turned on and off with a single button. For analysis, it is enough to lower the device into a container with water from the side of the probe. The display on the side of the Mi TDS Pen will show the measurement result.
The device can be calibrated and it is said that this is very easy and simple to do. I think that there are still some difficulties - the question remains where to get the standard for calibration. The only thing that comes to mind is the water for injection from the pharmacy, by default, it is ultra-pure, distilled, and therefore works well for our purposes.
As you know, water temperature always affects the error in determining the mineralization index. To account for this parameter, the analyzer can measure the heating level of the liquid. However, for some reason, the manufacturers decided that users do not need to measure the temperature of the water, since it is not displayed on the display tester, but simply "taken into account".
Therefore, in order to keep you informed, here is another example: if you take hot and cold water from the same tap in the same apartment, the difference in the readings of the device will be about 50-60 ppm. Naturally, hot water will show worse result.
Most likely, the problem is not that the xiaomi Mi TDS pen is bad at removing errors due to temperature. There are usually two pipes - one with cold (drinking) water, and the other with hot (usually considered technical). In fact, it comes about liquids with different mineral composition... It is not surprising that the instrument will show different meanings TDS.
By the way, the water from the reverse osmosis filter shows the content harmful substances about 20-30 ppm. After the filter, the water jug has a TDS value of about 150-170 ppm (this is normal). Mineral water usually shows up to 300 ppm this is a fact and minerals, because sometimes you need to consume salt, which is good for the body.
Buy Xiaomi Mi TDS Water Quality Tester
Conclusion
Everything is cool about this device, but it is still far from perfect. For those who want to control the quality of filtered water, the xiaomi Mi TDS handle is suitable. First, you need to measure the mineral and salt composition of the water before and after filtration.