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 22 Reviews
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Filter Reviews:
Jeffrey M.
United States United States
Good stuff...

Noticed it on sale, could not beat the price and glad to now have one. Bought some test items and yep, it works. MIRA is real gear at fair prices, highly recommended.

United States United States
A gift for my son

My son travels a lot wanted an inexpensive Geiger counter, mostly for curiosity. He travels a lot to unusual places. I had it sent to him and he's very happy with it. It's small, light, and it works well.

United States United States
MIRA Safety Geiger-1 Portable Dosimeter / Geiger Counter

Batts quit during setup!

A MIRA Safety Customer
David J.
United States United States
Fantastic Geiger!

I am Dave the NBC Guy and this is the answer to the Nuc problem! It is WAY better then the NucAlert! If you listen to me on PBN or seen me at Prepper Events you know I do not recommend equipment, but I do this ONE! Great product!

United States United States
Does the job! But no guide.

Item works well, manual has been translated to English (likely from Russian) and reads goofy. Only thing I would like to see is a chart/guide to reference dangerous levels of exposure. I made a small sheet after researching radiation levels and laminated it. I bought a small Pelican Case (1040), put my exposure chart in it, two packages of iodine pills that MIRA sells and some thick latex hospital gloves. Slapped a “Radiaton Detection Kit/Geiger Counter” on it and have it tucked away. This way it’s sealed and everyone in my family knows what it is.