MIRA Safety Geiger-1 Portable Dosimeter / Geiger Counter

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Protect yourself and your family from concentrated radiation, industrial accidents and nuclear disasters with the ultra-compact MIRA Safety Geiger-1 Dosimeter. Engineered to provide a small yet functional dosimeter solution for civilians, the Geiger-1 radiation detector is also designed to provide the same level of durable reliability as much larger military units—making it the best Geiger counter for practically every buyer.

Key Features of the Geiger-1 Handheld Dosimeter

  • Compact, pocket-friendly design is discreet and durable
  • Simple, two-button function is easy to learn and extremely reliable
  • Runs on two (2) LR44 button cell batteries
  • Integrated alarm triggered at 0.3 microsieverts per hour
  • Detects gamma radiation at levels as low as 0.1 megaelectron volts
  • Accurately reads radiation levels in 20 seconds
  • Simple enough for a child to use, but as accurate as professional-grade equipment
  • Reads accumulated dose for total exposure
  • Utilizes the same SBM20-1 Geiger Muller tube as military-grade Geiger counters
  • Manufactured in the Russian Federation 


Technical Specification

We’re exposed to background radiation every day of our lives. And while some level of radiation is natural, higher concentrations can be the result of poorly shielded electronic equipment, X-rays, CT scans or even air travel.

Beyond the substantial threat of nuclear meltdowns, disasters and fallout, this excess background radiation can add up over the years and contribute to substantial health issues. 

Fortunately, there’s now a practical solution you can take everywhere to monitor and measure your exposure—the MIRA Safety Geiger-1 radiation detector.

Only slightly larger than a ballpoint pen, the Geiger-1 is a fully-featured handheld dosimeter that offers the same reliability as a professional-grade Geiger counter at a fraction of the price and without the bulky size. It’s built from an impact-resistant polymer with an easy-to-read LCD screen and two buttons, making it one of the simplest and most user-friendly dosimeters on the market today. 

With a customizable radiation threshold, tone and light settings, it’s easy to personalize but designed for practical use right out of the box. At the press of a button, you can read either background radiation or the device’s accumulated dose.

Best of all, the Geiger-1 Geiger counter tucks easily into a pocket, purse or backpack so it will always be ready when you need it—providing you with a potentially life-saving tool that makes you more aware of your environment and ready to face a range of twenty-first century threats. The first step toward protecting yourself from background radiation is identifying it with a reliable radiation meter.

The Geiger-1 uses two LR44 alkaline button (watch) batteries, making it easy and affordable to operate for every member of your family. Battery changes take just a few seconds before you’re back on the go.

The Geiger-1 Geiger counter is one of the most revolutionary dosimeters on the market today, a perfect choice for anyone who lives within 2-300 miles of a nuclear power plant or anyone who’d feel more comfortable with an added layer of protection for your loved ones.

It’s a perfect addition for bug-out bags and disaster prep, since it’s compact, reliable, durable, and it runs on batteries that are long-lasting and easy to find.

So, grab a Geiger-1 dosimeter / Geiger counter and start learning more about your environment today!


Ask a Question
  • Does it come with information about what levels of radiation are dangerous?

    No, it does not. There are many resources on the internet that will let you know which levels are dangerous. We will be posting a blog in the near future to go through this in detail.

  • If my neighbour has a thermo-nuclear bomb hidden in his car in the garage wrapped in lead will it still emit radiation capable of being detected?

    There are many variables to consider here, including the thickness of the lead, how stable the material is, etc. I would consult with a nuclear engineer for this question.

  • What units of measurement does the Geiger-1 Radiation Detector use?

    The Geiger-1 Radiation Detector measures in micro-sieverts per hour (μSv/h).

  • What is the length of the device?

    It's about 4.75 inches.

  • Can the units of measurement be changed?

    No, they cannot.

  • Can there be different alarm levels that can be programmed?

    You can program one alarm level at a time.

  • Where are these made?

    In the Russian Federation.

  • Not being familiar with these devices, does it need to be calibrated at all, and does it have a functional life span?

    No, it does not need to be calibrated. There is no exact functional life span, it will last a long time so long as it's taken care of.


Customer Reviews
4.9 Based on 9 Reviews
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United States United States
Awesome geiger counter

Very easy to use, simple controls but also the ability to dive deeper into its abilities. Very aesthetic look. I have purchased from MIRA multiple times before and have never been underwhelmed by their products, great stuff, thank you!

United States United States
Great product. easy to use

We have tested this but not used it yet. Better to be safe than sorry!!

John F.
Norway Norway
Small and seemingly accurate compare to official background radiation data

Seems to be quite accurate compared to official background radiation data from my area. A very small and light device, roughly the size of a highlighter or marker pen. The drawbacks would be that it is a little tricky to change modes and the display is tiny and has no backlight as far as I can tell. Battery cap is easy to open, perhaps a little too easy, and I think I would have preferred threads instead of twist and pull. H-4 setting (light indicator setting) title is written in Russian in the manual for some reason. From the looks of it, it seems it is not waterproof so I will be careful with that. But these drawbacks are minor. I like it after all. :)

United States United States
works well

Compact works well .Display is small little hard to read.

Mauricio T.
United States United States

I need to know how to use it properly...