---
product_id: 611424597
title: "GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe"
brand: "gq"
price: "€ 426.81"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gq"
url: https://www.desertcart.nl/products/611424597-gq-gmc-320-plus-geiger-counter-nuclear-radiation-detector-meter
store_origin: NL
region: Netherlands
---

# GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe

**Brand:** gq
**Price:** € 426.81
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe by gq
- **How much does it cost?** € 426.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/611424597-gq-gmc-320-plus-geiger-counter-nuclear-radiation-detector-meter)

## Best For

- gq enthusiasts

## Why This Product

- Trusted gq brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe : desertcart.in: Industrial & Scientific

Review: Excelente producto. Tengo mi oficina cerca de un gabinete de radiología, pude comprobar que no estoy expuesto a radiación. Lo probé también con un equipo de rayos x dentales, funciona a la perfección. Muy satisfecho.
Review: This is a very good Geiger counter for the price. I've been using it for some at-home, low-budget experiments with small amounts of radioactive substances, and it has worked extremely well, with very consistent readings both when left in the same spot with background radiation and when it is placed next to a radioactive source (a sealed check source, uranium ore, a 2.33 g piece of depleted uranium metal, a thorium gas mantle, etc). Battery life is excellent. I have also had good luck with the software. The device records the number of counts for every second in its memory, which holds about two weeks of data. The software allowed me to download the data to my computer and convert it to CSV format, which can then be analyzed in Excel to see variations in natural background radiation, to determine if a very slightly radioactive source is measurably more radioactive than background, and the like. The sensitivity is a little low and quite dependent on where an object is placed relative to the narrow Geiger-Mueller tube, which is located at the bottom of the device below the buttons. I have two check sources: a sodium-22 source to check gamma sensitivity and a thallium-204 source for betas. With the beta source, I found that the plastic surrounding the GM tube prevents it from picking up the betas emitted by Tl-204 (maximum energy 764 keV; the advertised minimum for this device is 250 keV). If you open it up and put the source directly against the GM tube, it does gain the ability to detect them, although you shouldn't do this with non-sealed sources because they will contaminate the tube. With the gamma source, a 2-hour average of 6032 cpm was recorded, based on the source being placed directly against the bottom of the unit with the plastic back on. From this, I calculated an efficiency of 0.57%. This is a little low, but it still makes for a very useful device. Finally, the manufacturer runs a helpful forum where you can ask questions and try to solve issues you might have with it, and I hear their customer service is good although I've never used it myself. All in all, I'm very satisfied and the price can't be beat. edit: Got a third sealed check source: manganese-54, which emits only one gamma ray at 835 keV (99.98% of the time) and virtually nothing else. The sensitivity was only about 0.30%. I believe I overestimated Na-22 because it emits both a gamma and a positron (which produces another two gammas) on the vast majority of its decays. But even 0.3% is fine for most purposes and everything else is fantastic, so I'll keep the rating at 5 stars.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00I8GQ1EC |
| Are batteries included? | No |
| Batteries | 14500 Lithium Ion batteries required. |
| Best Sellers Rank | #16,576 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Geiger Counters |
| Brand | GQ |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.4 4.4 out of 5 stars (347) |
| Date First Available | 15 September 2015 |
| Item Dimensions LxWxH | 12.7 x 7.2 x 2.5 Centimeters |
| Item Height | 1 Inches |
| Item Weight | 235 g |
| Item Width | 2.85 Inches |
| Item model number | GMC-320Plus Fulfill |
| Lithium Battery Packaging | Batteries packed with equipment |
| Lithium battery energy content | 2.6 Watt Hours |
| Lithium battery weight | 0.7 Grams |
| Manufacturer | GQ Electronics LLC |
| Model number | GMC-320Plus Fulfill |
| Number of lithium ion cells | 1 |
| Product Dimensions | 12.7 x 7.24 x 2.54 cm; 235 g |

## Images

![GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe - Image 1](https://m.media-amazon.com/images/I/41HyM+FaP5L.jpg)
![GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe - Image 2](https://m.media-amazon.com/images/I/51HnEhn4kwL.jpg)
![GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe - Image 3](https://m.media-amazon.com/images/I/51JvC3fe3KL.jpg)
![GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe - Image 4](https://m.media-amazon.com/images/I/51JxMt8IQGL.jpg)
![GQ gmc-320 Plus Geiger Counter Nuclear Radiation Detector Meter Beta Gamma X Ray Europe - Image 5](https://m.media-amazon.com/images/I/51Ld8rALQpL.jpg)

## Questions & Answers

**Q: Curious - if there were some kind of nuclear event, would the unit be rendered useless from the EMP?  Probably a dumb question.**
A: In a nuclear event, you'd also have to worry about this . . . .

The GMC 320 Plus's upper range limit is 32 millirem per hour. (A millirem is 1/1000th of a rem).
According to the scientists at the Oak Ridge National Laboratory, a Facility of the U.S. Department of Energy, in their 1987 "Nuclear War Survival Skills", small doses of around 6 rem per day should "produce no incapacitating symptoms. The human body usually can repair almost all radiation damage if the daily doses are not too large."
   They go on to say, "Instruments that measure only milliroentgen-range dose rates are sold for war use by some companies. Since most Americans have no idea what size of radiation doses would incapacitate or kill them, and do not even know that a milliroentgen is 1/1000 of a roentgen, some people buy instruments that are capable of measuring maximum dose rates of only one roentgen or less per hour." (One roentgen is equivalent to one rem.) The book further says that a meter that "can measure one roentgen (rem) per hour is far too low to be of much use in a nuclear war."

**Q: How likely is Alpha radiation to be encountered after a nuclear accident such as Fukashima?**
A: Alpha sensitivity is most useful for detecting particulate contamination on objects or the body. Uranium for example, is generally safe to handle, but as any alpha emitter, dangerous if ingested or inside the body. In this respect, alpha detection is good for "frisking".  While having a counter that's sensitive to alpha is quite useful, you have to know the characteristics of such a sensor to understand what the readings mean.As for Fukashima, most fission products of concern to humans are detectable by an ordinary beta/gamma detector. Cesium 137, Strontium 90, Cobalt 60, Iodine 131.  If you live in Japan, a detector such as this would be useful.  If however you live in the United States and are concerned about Fukashima byproducts reaching our shores via weather or food supply, a Geiger counter will be absolutely useless.  The levels are so unimaginably small that you need a proper gamma spectroscopy system to detect anything.

**Q: What is the tube model and maker ?**
A: The installed Tube is M4011 from China.  However, you can install any compatible tube you want. See GQElectronics forum for the tube examples.

**Q: Does this make the famous clicking sound that you hear from Geiger counters in movies and video games?**
A: Sure does, but you can turn it off if you want to. It's not the loud knock you would see (hear) in the movies but more of a click.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***S on 31 October 2018*

Excelente producto. Tengo mi oficina cerca de un gabinete de radiología, pude comprobar que no estoy expuesto a radiación. Lo probé también con un equipo de rayos x dentales, funciona a la perfección. Muy satisfecho.

### ⭐⭐⭐⭐⭐ Review
*by T***K on 12 June 2015*

This is a very good Geiger counter for the price. I've been using it for some at-home, low-budget experiments with small amounts of radioactive substances, and it has worked extremely well, with very consistent readings both when left in the same spot with background radiation and when it is placed next to a radioactive source (a sealed check source, uranium ore, a 2.33 g piece of depleted uranium metal, a thorium gas mantle, etc). Battery life is excellent. I have also had good luck with the software. The device records the number of counts for every second in its memory, which holds about two weeks of data. The software allowed me to download the data to my computer and convert it to CSV format, which can then be analyzed in Excel to see variations in natural background radiation, to determine if a very slightly radioactive source is measurably more radioactive than background, and the like. The sensitivity is a little low and quite dependent on where an object is placed relative to the narrow Geiger-Mueller tube, which is located at the bottom of the device below the buttons. I have two check sources: a sodium-22 source to check gamma sensitivity and a thallium-204 source for betas. With the beta source, I found that the plastic surrounding the GM tube prevents it from picking up the betas emitted by Tl-204 (maximum energy 764 keV; the advertised minimum for this device is 250 keV). If you open it up and put the source directly against the GM tube, it does gain the ability to detect them, although you shouldn't do this with non-sealed sources because they will contaminate the tube. With the gamma source, a 2-hour average of 6032 cpm was recorded, based on the source being placed directly against the bottom of the unit with the plastic back on. From this, I calculated an efficiency of 0.57%. This is a little low, but it still makes for a very useful device. Finally, the manufacturer runs a helpful forum where you can ask questions and try to solve issues you might have with it, and I hear their customer service is good although I've never used it myself. All in all, I'm very satisfied and the price can't be beat. edit: Got a third sealed check source: manganese-54, which emits only one gamma ray at 835 keV (99.98% of the time) and virtually nothing else. The sensitivity was only about 0.30%. I believe I overestimated Na-22 because it emits both a gamma and a positron (which produces another two gammas) on the vast majority of its decays. But even 0.3% is fine for most purposes and everything else is fantastic, so I'll keep the rating at 5 stars.

### ⭐⭐⭐⭐⭐ Review
*by D***S on 14 August 2015*

Le tarif est correct par rapport à d'autres appareils similaires que j'ai trouvé dans mes recherches. Vu que mon utilisation prévue est quelques mesures dans mon environnement et non un usage professionnel. L'appareil est plutôt bien pensé. Par exemple l'affichage change de sens lorsque l'on retourne l'appareil, comme sur les iphone. Les fonctions vont à l'essentiel. Il y a aussi un rétroéclairage automatique de l'écran. Concernant les logiciels je ne les ai pas encore essayé... peut-être un ajout à cette revue. Ce qui m'à surpris ce sont les accessoires fournis : un cable mini usb de bonne qualité, une prise usb secteur certes étasuniene, une prise allume cigare usb et un étuis en tissu. Ca change d'apple... En même temps, la prise étasuniene n'est pas près de me servir et j'ai déja de nombreux cables usb et aussi des prises usb allume cigare... Et puis l'étuis, j'aurai aimé qu'il protège efficacement l'écran, qui est la partie fragile. Donc aucun des accessoires ne va me servir... Et j'aurai aimé une offre moins chère encore... sans les inutiles accessoires. La boite en carton fait un très bon étuit, sans compter que l'appareil est fourni emballé dans un sachet en une espèce de plastique molletonné.

## Frequently Bought Together

- GQ GMC-320Plus Fulfill Nuclear Radiation Detector Meter Test Equipment
- WERJIA Hard Carrying Case for GQ GMC300 Plus/GMC-320 Plus Radiation Detector
- Nuclear War Survival Skills Updated and Expanded 2022 Edition Regarding Ukraine Russia and the World: The Best Book on Any Nuclear Incident Ever ... New Methods and Tools As New Threat Emerge

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/611424597-gq-gmc-320-plus-geiger-counter-nuclear-radiation-detector-meter](https://www.desertcart.nl/products/611424597-gq-gmc-320-plus-geiger-counter-nuclear-radiation-detector-meter)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-22*