Radiascan-701А - Geiger counters shop
Quickly check residential and public facilities

You can check the soil, facades, and interiors of houses (especially those made of granite), tap water, volcanic sand beaches.

Check suspicious items

You can check old antiques, watches, figurines, uranium glass or uranium glaze dishes, toggle switches, compasses, photo lenses, Christmas-tree decorations, electronic components and natural minerals.

Quickly monitor the background radiation, search for contaminated objects in the area

You can carry the device with you all the time in a special case. On a belt, in a pocket or just in a bag. The device will inform you about entering the zone of increased radiation with a sound alarm. You can customize the alarm levels by yourself or use the default settings.

Check food products

Check mushrooms, berries, dairy products, fish, meat, grown in areas of radioactive disasters and radioactive fallout. This is a very difficult task since hazardous radioactive substances are hidden inside the organic mass of food. Only a small part of it emits, mostly as Beta particles. RadiaScan detects them with its multi-sensitive sensor.

Stationary background radiation monitoring

The device can work in standby mode and collect environmental data, for example, outdoors. The device stores data in its memory, you can send them to a PC via USB and build graphs in the software. Sometimes enthusiasts manage to register temporary changes in the radiation background caused by the movement of air masses from volcanoes, forest fires, and man-made accidents. Such air sometimes contains radionuclides.

Periodically check offices and living spaces for hazardous radioactive radon gas

Using a special technique, RadiaScan can provide a conditional estimate of the radon concentration in the premises. Pay special attention to tap water, as it can be highly radon gas-saturated. Radon and its decay products emit Alpha and Beta particles which can only be detected by professional mica sensors such as BETA-1 (installed in RadiaScan).  Note that it is Radon that represents the greatest radiation hazard in the modern world.

According to official WHO data, radon is the second leading cause of lung cancer, after smoking. The European Code Against Cancer, among twelve proposed items, recommends checking the living quarters for the radon gas presence.

The human accumulates about half of the lifetime radiation dose just by inhaling radon in residential and work premises.
Identify the type of radiation from a specific object

What kind of radiation does such a source emit? Alpha, Beta or Gamma? If you find a radioactive object, you can identify the type of its radiation using RadiaScan and a simple functions.

Avoid long time contact with radioactive people

Some people next to us in the public spaces are being treated with radioactive iodine-131 or technetium-99. They emit strong radiation around, so unless high necessity, staying near such people for a long time is undesirable. The device will help control this situation.

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Detects any radiation: α + β + γ + X-rays

This is one of the few dosimeters that can detect and measure all 4 types of ionizing radiation: Alpha + Beta + Gamma + X-ray. Conventional SBM-20 tube-based dosimeters are capable of detecting Gamma, X-rays and partially Beta particles. While Alpha and Beta particles are the most dangerous. RadiaScan-701A dosimeter detects all types of radioactive emission with a highly sensitive Beta-1-1 mica sensor.

Highest precision measurement

RadiaScan-701A is a household version of the professional laboratory RadiaScan-801 dosimeter listed in the state register of measuring instruments and is subject to state metrological control. RadiaScan-801 has a certificate of state verification unlike RadiaScan-701A. Its results can be used for expert opinions.

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6 working modes
Monitoring background radiation and measuring radiation from specific objects
Search for point objects of radiation
Control of food and other objects with low radiation
Radiation measurement on a customizable schedule
Measurement of α-particle flux density
Measurement of β-particle flux density
Quick displaying of accurate results

The device has an ARM Cortex-M3 processor that provides accurate results as quickly as possible. Moreover, the stronger the radiation source, the faster the result is displayed.

Tracking results in a convenient format

RadiaScan-701A displays the radiation level in different units of measurement: Sievert, CPS, Roentgen. Readings in alpha and beta modes are displayed in particles per square centimeter per minute.

Evaluating the measurement result accuracy

The measurement result is accompanied by its measurement error indication. So you can always check accuracy of the radiation measurement result currently shown on the display. The longer the measurement, the lower the statistical error and the more accurate the current result. The overwhelming majority of dosimeters from other manufacturers do not display a statistical error and, as a result, you do not understand whether you can trust the displayed results.

Extended range of radiation dose rate measurement

From 0.01 μSv/h to 10.0 mSv/h. This range of RadiaScan is 10 times greater than that of conventional SBM-20 sensor-based dosimeters. Conventional dosimeters have a rather small dose rate measurement range. When exceeding it, the device freezes and stops measuring. This makes them conditionally useless in some cases since they "go off the scale". RadiaScan will also operate at a radiation power of up to 10.0 mSv/h which significantly increases its usefulness even in case of extreme man-made accidents or military operations.

RadiaScan is easy to charge via USB – as easy as your a smartphone

The set contains 2 embedded AAA rechargeable batteries of 1,100 mAh. You can charge them via a regular USB cable (no need to remove them from the device and use a separate charger). You can charge the dosimeter both from a 220 V mains, and from a PC or external power banks. Fully charged batteries provide up to 59 hours of continuous dosimeter operation (in economy mode). With periodic device use, a fully charged battery pack serves for more than a month or more.


PC connection

The dosimeter can be connected via a USB cable to a PC with a preinstalled RadiaScan app. In the app, you can configure the dosimeter, work with the event log, and remotely control the measurement process, for example, in cases where the personal presence at the measurement site is undesirable (also convenient for long-term measurements). You can also download RadiaScan PC app from themanufacturer's official website.

Regular software improvement and firmware update

RadiaScan 701A is an actively developing product. The device firmware has been continuously improved since 2013. Several updates are released annually. By updating the RadiaScan firmware, you can periodically improve your dosimeter free of charge.

Bright color OLED display

Bright, easy-to-read color display with 170 deg. viewing angle. Display size - 1.8 inches, resolution - 160x128 pixels. Compared to the monochrome version, the multicolor display shows a much larger amount of visually understandable information (analog, digital) on the screen.

Quality certified in Europe

RadiaScan-701A has successfully passed tests in a European laboratory and has a European CE certificate.

Sound and light alarm

The standard dosimeter alarm feature provides timely notification of exceeding preset radiation thresholds, warning of possible radiation exposure. Unlike many dosimeters, with RadiaScan-701A, you can set 2 thresholds in each of the operating modes.


The device has 6 separate operating modes for solving specific tasks.

Main mode

After switching on, the device is always in the basic mode. In this mode, you can:

  • measure total background radiation (Gamma radiation, or total Alpha+Beta+Gamma)
  • measure the level of radiation from specific source objects

Keep the back lid closed if you want to detect only Gamma rays.

Take off the lid if you want to measure all Alpha+Beta+Gamma+X-ray.

Just push the "on" button and the mode will load.

Search mode

RadiaScan has a unique Search mode. It is very convenient and easy-to-use, unlike other dosimeters with the Search mode. In the Search mode, RadiaScan shows the result of averaging measurements for a minimum of every last 4 seconds. This algorithm ensures that the dosimeter reacts quickly to even slight radiation changes.

This mode is most optimal for locating any radiation source when moving the dosimeter in space. Search means smooth dosimeter movement in the immediate vicinity of the objects or along the surface under study, and simultaneous monitoring of the detected radiation power on the device display. If necessary, you can extend the interval for calculating the measurement statistics: from the default 4 seconds to the desired value.

Detection mode

RadiaScan-701A is the only household dosimeter capable of adequately assessing food contamination with radionuclides.

In the Detection mode, the device makes two consecutive measurements – first the background, then the object under study. Finally, the dosimeter displays the difference between the two measurements and a clear text interpretation of the result: “Background Excess” or “Normal”.

The mode features high accuracy of the results at a very low power of self-radiation from the product under study (less than 0.1-1 µSv/hr above the surrounding background). It's a really difficult task. RadiaScan successfully copes with it. You can adjust both the statistical error level and test duration.

As a rule, the Detection mode is used to check food products, because excess self-radiation over the background can be very slight, but they can contain a significant amount of radionuclides. Foods such as berries, mushrooms, milk, meat and fish grown in areas once contaminated in the past may contain the Cesium 137 and Strontium 90 isotopes with a half-life of about 30 years.

Unfortunately, there have been incidents in the world with the release of radioactive substances with a half-life of tens and hundreds of years into the environment, and wind carried them for thousands of kilometers followed by precipitations on forest and agricultural lands.


In the first half of the last century, people did not fully understand the danger of radioactive substances, and actively used many isotopes in the civil and military industry. Waste of these industries was sometimes simply taken out of the city and dumped. Since then, some areas have been contaminated. However, people grow food in these areas, gather mushrooms and berries, and graze cattle. Therefore, if you bought or gathered something and have doubts about the product, take a few minutes and make sure of its radiation safety.

Scheduled measurement mode

In this mode, RadiaScan-701A periodically turns on at a specified time, measures within a specified time interval and turns off. The device logs the measurement results.

Thus, it measures the radiation power in the basic mode. Moreover, you can set several schedules you need at the same time. In addition, the device will provide scheduled measurement even if turned off or operating in a completely different mode.

You can also view the results of scheduled measurements in a graphic form. This is possible by connecting the RadiaScan dosimeter to a PC running Windows OS.

Alpha and Beta modes

In these modes, you can measure separately α or β particles flow per square centimeter per minute.   Please follow the algorithm described in the operation manual.

Сonstant improvement

RadiaScan is one of the few dosimeters that is truly being improved. Since 2013, the device has been modified several times: RadiaScan 501, 501A, 701, and now RadiaScan 701A and RadiaScan 801. This active development would be impossible without high-quality feedback from consumers.

Positive reviews and feedbacks

Our fruitful interaction with engineers also results in several hundred bright feedbacks and emotional comments in different languages. Sometimes even in the form of full-fledged articles and videos from RadiaScan users on various Internet websites. Radiation has even become a kind of hobby for some RadiaScan users!

Easy to use

General modes are very easy to use. Just switch on the device and it will start measurements. Switch modes using buttons and choose the mode or manage settings.


Using the case, you can conveniently attach the device to the waist belt and protect the device from external damage.


RadiaScan 701A is the most affordable household Pancake probe-based dosimeter for Apha, Beta, Gamma and X-Ray radiation.


High accuracy and speed. A large set of useful functions  (new ones can be added with firmware upgrade).

General elements
Three general elements

RadiaScan 701A has won the leadership and sympathy of consumers due to the successful combination of three key components:


RadiaScan 701A has a Geiger Muller pancake probe detector Beta 1-1, as used in professional dosimeters.


The RadiaScan firmware was developed by experienced programmers and continues to improve. Firmware updates are released several times a year.


RadiaScan 701A is equipped with an ARM Cortex M3 processor for fast and accurate calculations.

Delivery and Payment
Delivery and Payment
Fast handling and shipment
We offer worldwide delivery
You can pay by credit card
Now you know a lot about Radiascan!

But if you want to know extra, you can study frequently asked questions.

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  • Dosimeter RadiaScan 701A
  • 2 x NiMH AAA 1100mAh rechargeable batteries
  • USB cable
  • Wearing case
  • Warranty card

detector type

Geiger Muller pancake probe detector Beta 1-1,

Indicating range of radiation intensity mcSv/h
0,01 - 10 000
Indicating range of integrated dose mSv
0,001 - 1 000
Photon energy range MeV
0,05 - 3,0
Indication range of beta rays fluence rate (90 Sr), part/(sm2·min)
5 - 30000
Indication range of alpha rays fluence rate (239 Pu), part/(sm2*min)
5 - 30000
Energy lower limit of registered beta radiation (due to average energy of beta spectrum 14C)
MeV, less than or equal to 0.05
Indication range of beta rays fluence range limits part/(sm2*min)
1 - 30000
Indication range of alpha rays fluence range limits part/(sm2*min)
1 - 30000
Energy lower limit of registered beta radiation (due to average energy of beta spectrum 14C)
MeV, less than or equal to 0.05
Indication range of dose limits
mkSv/h 0.001-999.999
Indication range of dose level limits
mSv 0.1-9999.9
Power supply
two AAA rechargeable or regular batteries
Contact us
Scan Electronics Ltd.
Cyprus Branch