TOP—7. The best radiation dosimeters. Rating 2022!

Hi all! Today we will talk about radiation dosimeters - special devices designed to measure the amount of radioactive radiation. There are many models that differ in characteristics and purpose - from compact household-type devices to professional devices used in hazardous industries and potentially hazardous facilities.

Today we will look at exclusively compact models that can be carried with you and used to check the radiation background of rooms or food. Now there are many models on the market from domestic and foreign companies. Finding the right device is quite difficult, so we have selected for you the seven best radiation dosimeters that you can buy in 2021.

MKS-01SA1M

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• Sensor type – gas-discharge counter.
• Radiation dose rate – from 0.1 to 10000 µSv/h.
• The flux density of β-particles is from 5 to 30,000 parts/cm2*min.
• The flux density of α-particles is from 10 to 30,000 parts/cm2*min.
• Measurement error – 25%.
• Dimensions – 112x65x30 mm.
• Weight – 200 g.

MKS-01SA1M is a pocket professional dosimeter-radiometer with speech output. The measurement results are updated every second with speech and sound accompaniment. The device is capable of operating in the mode of ambient gamma radiation dose equivalent power, alpha and beta particle flux density, as well as searching for sources of ionizing radiation. The measurement error in all modes does not exceed 25%.

Compact dimensions and an optimal algorithm for determining background radiation make the device easy to use. The measurement results are displayed on the liquid crystal screen. The device is controlled using two buttons.

At the user's request, the frequency of sound and visual signaling of radiation intensity can be configured. When changing batteries, the device remembers the current level of the accumulated radiation dose. The standard power source is two AA batteries. If necessary, you can additionally order an adapter to connect the device to a household AC network with a voltage of 220V.

Which radiation dosimeter is better?

A radiation meter or dosimeter is a device that allows you to determine the degree of ionizing radiation indoors, outdoors, on various objects, in food or water. There are many types of meters, so they can be divided into several groups according to purpose - household, professional, industrial, military. The first two types are more popular, so they were considered in the rating. We have reviewed popular models, so we can recommend the following devices:

• RadiaScan-701 A is a household appliance that is an analogue of a professional device, with excellent characteristics, long service life, and flexible settings;
• Professional MKS-01SA1M, which produces highly accurate results, has a memory for storing test results with a search function for a source of ionizing radiation.

The presented products received good reviews from ordinary users, experts and specialists.

GREENEST ECO 6

• Sensor type – Geiger counter SBM-20.
• Gamma radiation dose rate – up to 1000 µSv/h.
• The registered energy of gamma radiation is from 100 keV.
• Measurement error – 20%.
• Dimensions – 122x52x14 mm.
• Weight – 85 g.

GREENTEST ECO 6 is a multifunctional device that includes a dosimeter, nitrate tester and water hardness meter. The model is capable of measuring the level of background radiation on the ground and from specific objects using gamma and X-ray radiation. The device is characterized by a convenient and understandable menu and command selection, high performance, a bright modern display, as well as the accuracy of the radiation dosimeter.

The power source is a built-in lithium-ion battery with a capacity of 1000 mAh. This is enough for six hours of continuous operation. The body of the device is made of impact-resistant plastic. It is worth noting that the degree of resistance of the case to the penetration of dust and moisture corresponds to class IP-20. The device cannot be used in the rain or in highly dusty areas. Relative disadvantages include the inability to connect the device to a computer. The average service life, subject to operating rules, is five years. The model is covered by an official warranty from the manufacturer, which is valid for one year.

Radiation dosimeter rating

Radiation measurements using a dosimeter are carried out indoors, outdoors, and various objects are also checked. Thanks to a dosimeter for measuring radiation, the following parameters can be determined:

• The degree of contamination with radioactive substances;
• The total amount of radioactive substances in products;
• Background gamma degree.

The design of a typical dosimeter includes the following elements:

• Detector or sensor. There may be several of them placed inside one device to increase the efficiency of the change.
• Removable, replaceable filters.
• Radiation dose indicating device.

The main element responsible for measuring radiation is the sensor. There are several types of sensors capable of measuring alpha, beta, gamma, and X-ray radiation. The detector converts the received radiation into an electrical signal, which is then processed.

When using a dosimeter, you need to take into account that there is a natural background emitted by natural sources, for example, the sun. It is defined as the dose rate (i.e. the amount of radiation in a certain period of time) at a specific location. A safe value for the human body is a level of up to 50 microroentgen per hour or 0.5 microsievert per hour. Thanks to the dosimeter, it is also possible to measure the number of pulses per minute, which helps to assess the degree of radiation contamination.

Household, industrial, military, and professional devices will differ in their characteristics, permissible values, functionality, and degree of protection of the housing. To make it easier for customers to choose the right model, experts from the VyborExperta.ru team have developed a rating of the best dosimeters. The following indicators were taken into account:

• Type of installed sensor;
• Valid values;
• Functional;
• Type of connection to a computer or other device;
• Housing security;
• Dimensions.

The selected nominees were tested by real users, based on whose feedback a rating was developed. Expert reviews were also taken into account during the assessment. The entire top is divided into two groups - for household and professional use.

Dosimeter Rodnik 3

• Sensor type – Geiger counter SBM-20-1.
• Radiation dose rate – from 0.1 to 1000 µSv/h.
• Excess warning – from 0.25 μSv/h.
• The registered energy of gamma radiation is from 0.3 to 1.25 MeV.
• Measurement error – 15%.
• Dimensions – 112x32x19 mm.
• Weight – 45 g.

Dosimeter Rodnik 3 is another compact dosimeter equipped with a sensitive radiation sensor that guarantees high measurement accuracy. It is worth noting that the device is completely designed and manufactured in Russia. This made it possible to significantly reduce the cost of the model compared to similar products. At the same time, the reliability of the device was not affected - all electronic components of the dosimeter are rigidly installed on one printed circuit board without the use of external conductors.

Continuous operation in the background ensures that the audible alarm is triggered instantly. Manufacturers took care of saving the settings, providing the device with a built-in clock and non-volatile memory. It is also worth noting the record low energy consumption - the manufacturer guarantees that the dosimeter can last up to ten years without replacing batteries.

The dosimeter body has two holes for attaching a strap, which will prevent the device from accidentally falling if it slips out of your hand. Inside the dosimeter body there are two powerful neodymium magnets, with which the device can be securely attached to various metal surfaces, for example, on a refrigerator door and used as a stationary clock and radiation indicator.

Classification of dosimeters: operating principle and purpose

What types of dosimeters there are and what they measure are the main questions for beginners faced with such a device. A large category consists of household devices. In simple words, they measure the level of radiation, and, depending on their capabilities, last for different types.

Classification of dosimeters according to what type of detector is installed in them:

• Gas-discharge ionizing radiation;
• Scintillation;
• Semiconductor;
• Diamond-based devices;
• Photodiode;
• Integrating – individual dosimeter. It has several subtypes: photographic film, chamber ionization, thermoluminescent, track, electret and radio photoluminescent

Note. The household appliance became widespread after the accident at the Chernobyl nuclear power plant (1986). Until this moment, it was used in scientific and military fields.

The source of radiation substances can be hidden everywhere: air, water, food, materials, etc. Recently, special devices have been in great demand to identify dangerous areas for living and examine goods for damage by radioactive substances. They are called dosimeters. To understand how radiation affects the human body, the table shows the standards and their interpretation.

Table – “Radiation level, explanation of its meaning”

For humanity, radiation enters in two ways: internally - through food, for example, and externally - through the air. You can protect yourself from the second option, but the first option is a controversial issue.

A modern home device can simultaneously measure several radiations in various substances (objects):

• The soil is measured for radiation by gardeners, gardeners and agricultural organizations. In this case, it is better to use universal dosimeters - they measure more than one radiation.
• For health (the medical field), “pulmonary meters” are used, which are located on the lower floors of the premises. They are protected from background gamma and neutron radiation. Such systems measure and count radioactive radiation from gases and aerosols (which do not dissolve in human tissues) that a person inhales. Such substances can leave the lungs over several days, months or years.
• In construction, such devices are used both indoors and outdoors, so that the building is located in an ecological location and is made of clean materials.
• The device is used to detect bad water. This even applies to bodies of water where swimming may be prohibited for one reason or another.
• In trade, a dosimeter is used to check food products, which shows the excess of nitrates. They can check things and other items purchased for the home.

Tips for choosing: if you plan to purchase a meter for your apartment, then it is better to buy a professional one. It has a wide measurement range. A specialized dosimeter is suitable for a specific measurement of background radiation.

Picture - Dosimeter in operation.

How to choose a dosimeter? There are different selection criteria in this matter:

1. Purpose;
2. Technical properties;
3. The material from which the device is made;
4. Price segment;
5. Which company is better?

The main criterion when choosing a dosimeter, which you should immediately pay attention to, is the measurement range: the higher the numerical value, the better. Modern devices can work independently, in conjunction with a personal computer or smartphone.

The easiest way to acquire these tools is to place an order in one of the virtual stores. According to buyers, products from AliExpress are popular for their budget prices and good quality of goods. The only drawback of the trading platform is the long wait for the parcel and the possibility of mechanical damage during transportation.

Where to buy a radiation device, in fact, is not so important. The main thing is that instructions are included in Russian, and the capabilities of the dosimeter satisfy the buyer’s needs.

Customer reviews, consultations with sellers and recommendations of people who have purchased the same model as you would like will help you avoid mistakes when choosing. The manufacturer plays a minor role in this matter.

Soex Quantum

• Sensor type – Geiger counter SBM-20-1.
• The range of radioactive background level readings is up to 1000 µSv/h.
• The accumulated dose measurement range is up to 1000 Sv.
• Dose accumulation time is up to 10,000 hours.
• The registered energy of gamma radiation is from 0.1 MeV.
• Measurement error – 15%.
• Dimensions – 130x52x18 mm.
• Weight – 71 g.

And today’s release ends with Soex Quantum, a professional radiation dosimeter made in a modern style. This is one of the most popular professional models - it is successfully sold in 40 countries around the world. The device is characterized by high accuracy and speed of measurements. Thanks to the intuitive menu, as well as color and sound indication, working with the device will not cause difficulties even for untrained users. At the same time, the cost of the model is an order of magnitude cheaper than its closest competitors.

The device is included in the state register of measuring instruments. Accordingly, this model must be checked in specialized centers every year. The model is equipped with two modern Geiger counters, which guarantee high measurement accuracy. If necessary, research results can be saved on a computer using special software.

The dosimeter will need only nine seconds to process the research results. The user independently chooses the method of displaying readings - continuous, numerical or graphic. The standard power source is regular batteries or AAA batteries. The model is adapted to work from the network. To do this you need to use an adapter or USB cable.

How to choose a radiation dosimeter

The choice of radiation dosimeter is determined by its purpose. There are household and professional models, which have different characteristics, measurement limits, and functions.

Sensor

The main function of the dosimeter is performed by the sensor. Most of the characteristics of the device depend on its quality and efficiency. The sensor can be designed to determine a separate spectrum of ionizing radiation or a combination of them. According to their design, cylindrical and end sensors are distinguished. The former are used for recording gamma and beta radiation and are characterized by high penetrating ability. These are sensors SBM-20, SBM-10 and their modifications. The second type detects gamma rays more accurately. These are Beta-1, Beta-2 sensors and their modifications.

According to their functional features, sensors are as follows:

• Mica Geiger-Muller counter. Used in household models. Capable of detecting alpha and beta particles.
• Gas discharge. Installs in small pocket devices. Detects gamma and beta radiation. Shows only the critical level.
• Thermoluminescent lamp. The main application is individual devices. Determines the accumulated dose.
• Scintillation crystals. Gamma particles are detected.
• Pin diodes. They have low sensitivity, so they only record exceeding values. Application: installation in telephone plugs.

Measurement limit

You can buy a household radiation dosimeter to measure small quantities. Household appliances measure in a narrower range – up to 10 µSv/h. Specialized models have an increased limit, as they are used in areas with increased background radiation.

Functional

Radiation dosimeters have the following functions:

• Notification system. It can be sound, light, vibration.
• Data output. Most products are equipped with a screen on which the test results are displayed in numerical and graphic form. The display can be monochrome or color, but it is better to give preference to the first option. Color screens waste a lot of energy, causing the battery to drain quickly.
• Operating modes. The device may have several operating modes with the ability to set the optimal one.
• Availability of a remote detector for more convenient checking.
• Possibility of connecting to a PC.

When choosing, the type of food is also taken into account. The device can be powered by batteries, accumulator, or powered from the network or computer.

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Manufacturers of dosimeters-radiometers

The market offers a wide selection of dosimeters of domestic or foreign production, but the most successful models are produced by the following manufacturers:

• Ecorad LLC, St. Petersburg, manufacturer of dosimeters-radiometers MKG-01, DRGB-01 EKO-1M, was founded in the 90s of the 20th century, and since 2001 it has entered the market under the Ecorad brand. The company was created to develop and produce equipment that measures the amount of ionizing radiation in order to assess its impact on the environment;
• Manufacturer of dosimeters-radiometers Politekhform LLC, Moscow, manufacturer of dosimeters-radiometers DKS-101, DRBP-03, DKG-07BS, MKS-07N, created in 1991 with the aim of ensuring the safety of the population, the environment, as well as minimizing economic losses due to man-made accidents. The company is engaged in the development and production of equipment in the field of dosimetry and gas analysis, as well as other measuring and analytical instruments designed to monitor the state of the environment based on the requirements of ensuring comfortable living conditions for the population;
• NPP Doza LLC Moscow, manufacturer of the DKS96 dosimeter-radiometer, organized in 1991 by specialists from NPO VNIFTRI, the leading research institute dealing with issues of metrology of ionizing radiation. Now the specialization of NPP Doza is the development and production of radiation monitoring systems and equipment: dosimeters-radiometers, spectrometers. The company's products comply with Russian and international standards and are supplied to more than 50 countries;
• Polimaster LLC, Minsk, manufacturer of the MKS-RM1405 dosimeter-radiometer - a company created in 1992 with the purpose of developing and producing devices that allow detecting, monitoring and controlling sources of radioactive radiation. The company's products are now supplied to more than 90 countries; service companies have been organized in 6 countries to service the equipment of Polimaster LLC, there are dealers in 55 countries, Minsk, manufacturer of dosimeters-radiometers MKS-AT1117M, MKS-AT1125, MKS-AT6130, dosimeter DKS-AT1123 established in 1995 as a subsidiary Minsk Research Institute of Instrument Engineering with the aim of developing and producing instruments for nuclear research and radiation monitoring. The company's products are in demand in the energy, medicine, and industrial sectors; they are used for environmental monitoring and scientific research.

These and other Russian and Western enterprises offer their products on the domestic market, but the equipment of these companies is adapted as closely as possible to the conditions of Russian production and construction.

The best household multifunctional dosimeters

The new generation of Russians prefers to lead a healthy lifestyle. Household dosimeters are becoming reliable assistants in this laudable endeavor. Many of them can perform several different studies, which is highly appreciated by users. Experts have identified several useful portable models.

Greentest Eco 5, KIT FB0136

Rating: 4.9

The Greentest Eco 5 household dosimeter has wide functionality. In addition to determining background radiation, the device will help identify products with a high content of nitrates, as well as assess the level of water hardness. For many consumers, the low quality of vegetables and fruits presented in stores was an unpleasant surprise. Experts note a simple and understandable menu, which makes the device accessible to a wide range of consumers. The tester is powered by a battery; the kit includes an adapter for charging the battery from a household network. The model is the winner of our review.

In reviews, consumers praise the dosimeter for its versatility, ease of use, and clear menu. The only downside is the high cost.

Advantages

1. wide functionality;
2. clear menu;
3. charging adapter;
4. lightness and compactness.

Flaws

1. high price.

Soex Ecovisor F4

Rating: 4.8

The Soex Ecovisor F4 dosimeter has even greater functionality. The device is capable of detecting radiation contamination, determining the concentration of nitrates in products, assessing the level of water hardness, and also detecting the electromagnetic field. The manufacturer chose 2 AAA batteries as the power source. Experts consider the strengths of the device to be a durable rubberized body, a simple interface, and a touch display. The model has a stylish design and can take measurements at several points at once. When connected to a computer, the device can periodically update the firmware.

Consumers like the appearance of the device, its wide functionality, and ease of use. The disadvantage of the model is the short wire on the adapter.

Advantages

1. wide functionality;
2. touchscreen;
3. you can update the firmware;
4. stylish design.

Flaws

1. short wire at the adapter.

SOEKS (Soeks) Ecovisor F3

Rating: 4.8

The SOEKS dosimeter (Soeks) Ecovisor F3 can evaluate three harmful factors for human health. The device changes the degree of radiation pollution, the concentration of nitrates and the degree of water hardness. Thanks to the composite probe, measurements can be taken at several points simultaneously. This design increases the reliability of the results obtained. Experts praised the manufacturer for expanding the range of fruits and vegetables that the tester can examine. The device menu is intuitive; if necessary, you can look at the attached instruction manual.

Users differ in their opinions when it comes to assessing the accuracy of measurements. Some consumers find the measurements realistic, others refuse to believe them. And some people think the price is too high.

Advantages

1. three in one;
2. wide range of products under study;
3. intuitive menu;
4. clear instructions.

Flaws

1. high error.

DO-RA VDR-IRQ1801-w

Rating: 4.7

Not long ago, a new development by Russian scientists, DO-RA VDR-IRQ1801-w, went on sale. This is a special indicator that works in conjunction with a computer or smartphone. You can download the application for the device both on Google Play and on the App Store. Experts consider the portability of the device (85 g) to be a big plus, which allows you to always have a dosimeter with you. The affordable price will also be an attractive factor for potential buyers.

Since the new product has not yet managed to find a large number of fans, there are still few reviews from the owners. Users did not like the primitive instructions, which do not provide answers to emerging questions. But the compactness and convenient plug can be considered an asset to the ionizing radiation indicator.

Advantages

1. miniature;
2. low price;
3. Hi-tech;
4. variety of colors.

Flaws

1. narrow scope of application;
2. primitive instructions.

Haak Elektronik SMG-2

Rating: 4.6

The unique design distinguishes the German dosimeter Haak Elektronik SMG-2 from its competitors. The device is made in the form of a mobile phone, the display of which displays information about the radioactive background. According to experts, the device copes with its task “excellently”. Quite quickly the user receives information about beta, gamma and X-ray radiation. The low price was another factor for including the dosimeter in our review.

The device evoked a lot of positive emotions among Russian consumers. They are pleased with the ease of use, nice appearance, and the presence of a built-in clock and thermometer. There are complaints on forums about the fragility of the connector, and the dosimeter is also afraid of moisture.

Advantages

1. recognizable design;
2. accurate determination of radiation;
3. affordable price;
4. built-in thermometer and clock.

Flaws

1. unreliable connector;
2. afraid of moisture.

DKG-RM1603a

Rating: 4.5

The Russian household dosimeter DKG-RM1603a is designed to measure gamma, x-ray and photon radiation. The device is in demand among workers at nuclear power plants, radiological laboratories, emergency services employees, customs officers and border guards. The miniature device is made in the form of a wristwatch; by the way, the dosimeter has many of the functions characteristic of them (time, date, timer). The detector is a Geiger-Muller counter, the error limit is 15% (for DER and DE). The gadget can be connected to external devices (PC, smartphone, tablet) via infrared.

Users note the survivability of the dosimeter, which is ensured by a sealed shock-resistant case. The high price becomes a deterrent to purchase.

Advantages

1. ease of use;
2. lightness and compactness;
3. low error;
4. reliability and durability.

Conclusion

Every year the ranks of dosimeter users are growing. Concern about health has become a concern not only for a narrow circle of people. Devices of this type help to protect ourselves and our loved ones as much as possible from radioactive substances that are with us everywhere. The table provides recommendations for choosing specific dosimeter models, which have become favorites among users due to their accuracy, simplicity and ease of use. The list includes goods of domestic and foreign origin. The most budget-friendly options turned out to be dosimeters from China.

Table - “Best dosimeter models for 2022”