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RADEX ONE Personal RAD Safety, High Sensitivity Compact Personal Dosimeter, Geiger Counter, Radiation Detector w/Software (U.S. Version)

4.1 4.1 out of 5 stars 124 ratings

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Brand RADEX by Quarta-Rad
Product Dimensions 3.8"L x 1"W x 2.7"H
Product Care Instructions Hand Wash Only
Item Weight 44 Grams
Blade Shape Round
Operation Mode Manual

About this item

  • High Sensitivity: Geiger counter detects ionizing radiation
  • Compact Design: Portable and lightweight for easy use
  • Software Included: User-friendly interface for data analysis
  • Radiation Detection: Identifies alpha, beta, and gamma particles
  • Safety Certified: Meets OSHA and NRC regulations for radiation protection

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 3.8 x 1 x 2.7 inches; 1.55 ounces
  • Item model number ‏ : ‎ ONE
  • Batteries ‏ : ‎ 1 AAA batteries required. (included)
  • Date First Available ‏ : ‎ June 1, 2013
  • ASIN ‏ : ‎ B00YQARZ5S
  • Customer Reviews:
    4.1 4.1 out of 5 stars 124 ratings

From the manufacturer

RADEX ONE compact, personal Radiation Detector for everyday life.

Radiation dosimeter is designed to measure ambient ionized radiation, as well as radioactivity of materials and products, and the accumulated radiation dose received.

Exceptionally calibrated, scientifically-tuned engineering equipment for common use.

The newest model from the RADEX brand - since 1992.

Accurate

Radiation

Fast

Detection

RADEX RD ONE Geiger Counter / Radiation detector / Personal dosimeter + software

RADEX, RD ONE, Geiger counter, radiation detector, dosimeter

Personal and compact

Tech specifications
  • 3.8 x 1 x 2.7 inches
  • 1.2 oz
  • 0.05~999.0 uSv/hr
  • up to 3000 hrs on AAA
  • Belt clip + USB cord
  • PC software for analysis
  • Easy to operate
  • Newest geiger by RADEX

Very fast: immediate result in 10 sec, best in 30 s.

Unique: Accumulated (not just immediate) dose.

PC connection via USB cord (provided)

Extremely sensitive: full-size GM tube inside!

Pre-calibrated and certified.

No additional calibration required for almost a decade (under normal conditions).

Manufacturer direct and factory-fresh.

1 year warranty replacements.

Looking for specific info?

Customer reviews

4.1 out of 5 stars
4.1 out of 5
124 global ratings

Customers say

Customers like the quality, portability, and versatility of the food slicer. For example, they mention it's an outstanding product, easy to carry, and small enough to use without drawing attention. That said, some appreciate correctness, and battery life. That being said, opinions are mixed on ease of use, and value.

AI-generated from the text of customer reviews

36 customers mention27 positive9 negative

Customers like the quality of the food slicer. They mention it works well, performs as expected, and is an outstanding product. Some say that it does the basic job and is a very nice unit for an excellent price.

"...Pros: Small, discreet, light weight, very easy to use, works great. Audio and adjustable level alert. Battery life is fantastic ~ 19 days...." Read more

"...It isnt a 'rough duty' device, but the quality appears OK for indoor lab use. How long it lasts is going to determine if its a good value." Read more

"...It is definitely the nicest and best-designed Geiger counter in this price range...." Read more

"...Norton goes bananas and tells you NOT to install. The program does not work, the USB connection to the device via USB worked the first time I..." Read more

23 customers mention23 positive0 negative

Customers find the portability of the product to be a good thing. They mention that it is small enough to be easy to carry, and has a compact form factor. Some say that the device is light weight and easy to use and read. Overall, customers find the product easy to pack and use while traveling.

"...The Radex One is a perfect grab and go unit. The compact size makes it very easy to take along, and discrete to use...." Read more

"Extremely compact, very sensitive, and far more sleek than their older designs...." Read more

"...small, slick, portable pocket-size- large sensor for its size- one of the least expensive units I have seen-..." Read more

"I really like that this is so compact and can go with me everywhere,put it in your pocket and you might even forget it's there...." Read more

10 customers mention10 positive0 negative

Customers find the Geiger Counter very handy and surprisingly practical. They say it's a convenient way to satisfy curiosity and is great for hobbyists. The meter is compact, accurate, and discrete to use, making it easy to take along. Customers also say it’s absolutely fascinating to carry around and see where places are hot.

"...The compact size makes it very easy to take along, and discrete to use...." Read more

"Very handy and surprisingly practical. The sensor is the length of the entire unit, which is more important...." Read more

"...It is absolutely fascinating to carry this around, and see where places are "hot"...." Read more

"...The included lanyard is actually super useful because the unit is light enough it doesn't feel like a burden...." Read more

9 customers mention9 positive0 negative

Customers are satisfied with the accuracy of the food slicer. They mention it's remarkably accurate, slick, and it conforms fairly well with GM readings.

"...Measured a known test source and the unit was very accurate. Shows current levels, and accumulated dose. PC software for data logging...." Read more

"...Conclusion: inexpensive, yet slick with accuracy on par with the other geigers I have compared it to.Fine unit indeed." Read more

"...Pros: Accurate, small and easily portable, battery life...." Read more

"It works ok. Gives real time information. Conformed fairly well with GM readings...." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the battery life of the food slicer. They mention that it has a very long battery life.

"...Audio and adjustable level alert. Battery life is fantastic ~ 19 days. Measured a known test source and the unit was very accurate...." Read more

"...Pros: Accurate, small and easily portable, battery life...." Read more

"...Has a surprisingly long battery life for a real Geiger-Muller counter." Read more

"...It will run a long time on its batteries so you can wear it on your neck and use it as a personal dosimeter; it is that small!..." Read more

16 customers mention11 positive5 negative

Customers are mixed about the ease of use of the Geiger counter. Some mention it's simple to use and read, with a simple interface. However, others say the screen, obscure buttons, and not immediately clear how to use it. The instructions are skimpy and the menu requires instructions to navigate at first. The start-up time is a little long, and the refresh time is also a bit long.

"...Glad I did.Pros: Small, discreet, light weight, very easy to use, works great. Audio and adjustable level alert...." Read more

"...What I liked is that there is no real setup or configuration required. Put in the battery and off you go.Useful:-..." Read more

"...comes with a handy strapCons:- initially takes some getting used to. Especially the buttons-..." Read more

"...The buttons & menus are easy enough to navigate with little practice...." Read more

11 customers mention5 positive6 negative

Customers are mixed about the value of the food slicer. For example some mention it's compact and accurate, while others say it has a very fragile construction and is made of cheap plastic. The first one arrived broken and the replacement died after a few days. The battery life is long, but the plastic panel for the buttons is flimsy.

"...(for that, you will need to wait for Apple iRad), and it is not particularly rugged (so don't drop it and don't expose it to elements) - but it..." Read more

"...PC software for data logging. Excellent buy for the price. I would buy another.Cons: No back light on the display...." Read more

"Did not hold up with out requiring major repairs. it dose its job. Warned me when I was entering a high rad area...." Read more

"...The price is brilliant. The only drawback of this unit is the small size...." Read more

8 customers mention0 positive8 negative

Customers find the food slicer's display too small and hard to read. They also mention that the print instructions are too small.

"...Cons: No back light on the display. The display may be a slightly difficult to read for older people...." Read more

"...Oh, be mindful that this thing has a tiny LCD display, and that you need to crack open the manual if you want to change any settings." Read more

"...The price is brilliant. The only drawback of this unit is the small size...." Read more

"...At first I was puzzled by the design: tiny screen, obscure buttons and not immediately clear how to use it...." Read more

Great little unit, outstanding customer service!  -- Updated
5 Stars
Great little unit, outstanding customer service! -- Updated
I saw the description for the unit and was a little hesitant to buy it, but for the price I took a chance. Glad I did.Pros: Small, discreet, light weight, very easy to use, works great. Audio and adjustable level alert. Battery life is fantastic ~ 19 days. Measured a known test source and the unit was very accurate. Shows current levels, and accumulated dose. PC software for data logging. Excellent buy for the price. I would buy another.Cons: No back light on the display. The display may be a slightly difficult to read for older people.Helpful hint: It has a lanyard but if you carry it in your pants pocket place the clip the front button side to help keep it from turning on.Update:It was about 3 months after I purchased the Radex One that I had a minor problem. The secondary clear protective cover that protects the LCD screen detached from the unit. It is held in place by a clear glue. I emailed Quarta Rad with the Amazon order info and asked for a replacement LCD cover. The Regional Manager, Dmitry replied that the Radex One had a 1 year warranty and they were shipping out a new replacement unit, and to simply ship the old unit back usps. I received the new one 2 days later. Wow talk about fast and eager to please, these guys went way above anything I expected. If you need a compact accurate Geiger / Dosimeter at a good price, this is definitely the one to get. Quarta-Rad, you ROCK!I have had this unit for a year now. The Radex One is a perfect grab and go unit. The compact size makes it very easy to take along, and discrete to use. The fast 10 second response time for the first reading is impressive with the best reading after 30 seconds.The sensitive internal geiger tube runs virtually the length of the unit, which places it in class with much larger hand held units. There is a vibration and soft audio alert that can be enabled as well as an adjustable received dose level alert. The battery life is fantastic ~ 19 days of continuous use with an energizer battery. I measured a known test source and the unit was very accurate, within a small percent of a unit that was 4 times as expensive. The display shows current levels, and accumulated dose. PC software for data logging. Excellent buy for the price. I would recommend it for anyone and I would buy another.
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Top reviews from the United States

Reviewed in the United States on August 4, 2016
Customer image
5.0 out of 5 stars Great little unit, outstanding customer service! -- Updated
Reviewed in the United States on August 4, 2016
I saw the description for the unit and was a little hesitant to buy it, but for the price I took a chance. Glad I did.
Pros: Small, discreet, light weight, very easy to use, works great. Audio and adjustable level alert. Battery life is fantastic ~ 19 days. Measured a known test source and the unit was very accurate. Shows current levels, and accumulated dose. PC software for data logging. Excellent buy for the price. I would buy another.
Cons: No back light on the display. The display may be a slightly difficult to read for older people.
Helpful hint: It has a lanyard but if you carry it in your pants pocket place the clip the front button side to help keep it from turning on.
Update:
It was about 3 months after I purchased the Radex One that I had a minor problem. The secondary clear protective cover that protects the LCD screen detached from the unit. It is held in place by a clear glue. I emailed Quarta Rad with the Amazon order info and asked for a replacement LCD cover. The Regional Manager, Dmitry replied that the Radex One had a 1 year warranty and they were shipping out a new replacement unit, and to simply ship the old unit back usps. I received the new one 2 days later. Wow talk about fast and eager to please, these guys went way above anything I expected. If you need a compact accurate Geiger / Dosimeter at a good price, this is definitely the one to get. Quarta-Rad, you ROCK!
I have had this unit for a year now. The Radex One is a perfect grab and go unit. The compact size makes it very easy to take along, and discrete to use. The fast 10 second response time for the first reading is impressive with the best reading after 30 seconds.
The sensitive internal geiger tube runs virtually the length of the unit, which places it in class with much larger hand held units.
There is a vibration and soft audio alert that can be enabled as well as an adjustable received dose level alert. The battery life
is fantastic ~ 19 days of continuous use with an energizer battery. I measured a known test source and the unit was very accurate,
within a small percent of a unit that was 4 times as expensive. The display shows current levels, and accumulated dose. PC software
for data logging. Excellent buy for the price. I would recommend it for anyone and I would buy another.
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26 people found this helpful
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Reviewed in the United States on April 25, 2020
Reviewed in the United States on February 1, 2017
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Reviewed in the United States on May 5, 2018
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Reviewed in the United States on February 9, 2018
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5.0 out of 5 stars Compact and accurate and great value
Reviewed in the United States on February 9, 2018
This is a very nice unit for an excellent price. I wanted to check the granite countertops in my home and generally reassure myself that we were in a safe environment. I already had a radon detector which has shown that my home is borderline. This unit will detect other types of radiation including cosmic ray exposure in flight I took it on a long haul flight and the readings corresponded with the FEMA website values. The price is brilliant. The only drawback of this unit is the small size. It can easily be mislaid and if you are like me you will want to take it everywhere. I’m adding some pictures showing the display values on a recent long haul flight. Highly recommend.
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4 people found this helpful
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Top reviews from other countries

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Antonia
4.0 out of 5 stars Gutes Gerät, aber Gebrauchsanweisung nur auf Englisch und Französisch.
Reviewed in Germany on March 6, 2019
6 people found this helpful
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Pio
4.0 out of 5 stars Ottimo
Reviewed in Italy on April 16, 2017
4 people found this helpful
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s
1.0 out of 5 stars restituito
Reviewed in Italy on December 1, 2016
3 people found this helpful
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Franz
5.0 out of 5 stars Klein, bestes Preis-Leistungsverhältnis
Reviewed in Germany on March 19, 2016
12 people found this helpful
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Yama
4.0 out of 5 stars RADEX ONE
Reviewed in Japan on May 10, 2018
3 people found this helpful
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