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GQ GMC-300E Geiger Counter Nuclear Radiation Detector Data Recorder Beta Gamma X-ray

4.6 4.6 out of 5 stars 1,748 ratings
$95.00
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Purchase options and add-ons

  • Newer GMC300EPlus Fulfill of gmc-300 series geiger counter for nuclear radiation
  • Text, graphic and large font mode provide visualized radiation changes
  • Usb connection for both communication and data communication
  • Package weight of the Product: 6 Ounces
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 5 x 2.8 x 1 inches; 6 ounces
  • Item model number ‏ : ‎ GMC300EPlus Fulfill
  • Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)
  • Date First Available ‏ : ‎ January 13, 2012
  • Manufacturer ‏ : ‎ GQ Electronics
  • ASIN ‏ : ‎ B00IN8TJYY
  • Customer Reviews:
    4.6 4.6 out of 5 stars 1,748 ratings

Product Description

The GQ GMC-300E Plus digital Geiger Muller Counter is designed to be a portable and convenient device. The device comes with built in audible and visual signals for the level of radiation detected. It can be used for radiation detection and monitoring both indoor and outdoor, as well as in other similar environments. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory. When connected to a PC, software can download the radiation history data to the computer and the user is able to analyze those data later. The GQ GMC-300 Soft Geiger Counter software’s appearance is an exact copy of the GMC-300 hardware human interface. You can download it for free and experience the GMC-300 user interface before you purchase the real hardware. The GQ GMC-300 installed a high capacity rechargeable battery. With power adapter, the battery can be charged while the data continually monitored. The main board also has a real-time clock for all time related data log. The USB port communicates with GQ soft Geiger counter software and the history data viewer software. The GQ soft Geiger counter software is an exact copy of the GMC-300. You can download it for free and experience the GMC-300 before you get it. Specification: Radiation detection: Beta and Gamma . Sensitivity to Gamma Radiation: 0.1~1 MeV Own Background: 0,2 Pulses/s Working Temperature Range: -50 +60 ｧｳ Working Voltage: 9V rechargeable battery LCD Display: Dot matrix with back light Working power: 0.045W - 0.2W Power: 3.7V battery / USB power The following CPM is measured by GMC-300: Background 20~40 Public park granite table 50~83 Uranium glass bead 238U 320 Uranium ore 238U 2905 Standard 5uCi source 26500 For demo software download ,technical support, please visit our support forum og GQ Electronics LLC website We ACCEPT RETURN for REFUND if you are NOT SATISFIED.

From the brand

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  2. gq brand banner with white border

    GQ has been developing cutting edge electronic protection instruments that protect people from harmful invisible threats including radiation.

    The product lines of GQ encompasses embedded development tools, Geiger counter nuclear radiation detectors, EMF RF EF radiation detector, social distance reminder, etc. GQ has always been striving for the best products, service, quality, support for customers as GQ is continually developing and innovating.

  3. 1001
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    harbor road
    GQ

    About GQ

    Visit the Store

  4. GQ GMC-300S Digital Nuclear Radiation Detector Monitor Meter Geiger Counter Radiation Dosimeter
    GQ GMC-SE Geiger Counter Radiation Detector Beta Gamma X-ray Portable Radiation Monitor Meter Dig...
    GQ GMC-SE Geiger Counter Radiation Detector Beta Gamma X-ray Portable Radiation Monitor Meter Dig...
    GQ GMC-SE Geiger Counter Radiation Detector Beta Gamma X-ray Portable Radiation Monitor Meter Dig...

    GQ's New Geiger Counter Series

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  6. PRG-056 MCUmall Canada Made GQ Brand True USB GQ-4X V4 (GQ-4X4) W25Q256 Universal Chip Device Pro...
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  7. What makes our products unique?

    GQ is working with university researchers and other USA companies to customize designs and develop new tools for enterprises, like Boeing.

    The products are designed, developed, assembled, quality tested, supported, and serviced at Seattle USA.

    How extensive is the company's operations?

    GQ is an Amazon vendor and has a network of over 50 global distributors worldwide.

    GQ has over 200,000 customers worldwide. The customers include US Department of State, USA universities, high schools, museums, global universities, companies, and individual users.

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    Best Seller: GQ GMC-500 Plus

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From the manufacturer

GQ GMC-300E Plus Geiger Counter Nuclear Radiation Detector Monitor Data Logger

GQ GMC-300E Plus Geiger Counter Nuclear Radiation monitor Data Logger

This popular Geiger Counter is designed and developed by GQ Electronics(USA). It is a portable and convenient device. It includes all necessary features for nuclear radiation detection. It features automatic data recording. It can continually monitor the radiation and log the data each second into internal memory, and then play back later. It is a useful and easy to use device.

Variable Display Mode

GMC-300E

GMC-300E Graphic mode

GMC-300E Text Mode

GMC-300E Menu mode

Easy to Read

Large Font mode can be selected from CPM, uSv/h and mR/h anytime.

Easy to Understand

Graphic mode graphs the last 60 seconds radiation changes in real time.

Easy to Get

Text mode provides all information you needed in one screen per selected or predefined.

Easy to Configure

Menu mode allow user to easily set the configuration of the device.

Rich Working Mode

Stand alone

Connect to a PC

Data report

GMCmap

Stand alone mode

Most easy way to work with. Hand held and easy to carry around.

Work with a PC

Download the history data from a PC. Real time monitoring on a PC.

Data collection

Comes with free software for data collection and analyze.

Log data to server

Log the unlimited data to GMCmap server in real time.

GMC-300E Package

Specification

  • Radiation detection: Beta, Gamma and X-Ray .
  • Sensitivity to Gamma Radiation: 0.1~1 MeV
  • Own Background: 0,2 Pulses/s
  • Working Voltage: 3.7-5V
  • LCD Display: Dot matrix with back light
  • Working power: 0.045W - 0.2W
  • Power: 3.7V rechargeable battery / USB power

GMC-300 Geiger Counter used in factory plant radiation testing and monitoring

GQ GMC300EPlus Fulfill Digital Nuclear Radiation Detector Monitor Meter

The handheld device can be easily carried to fields for close-up radiation monitoring or testing.

GMC-300 Geiger Counter used in factory plant radiation testing and monitoring

Field Testing

Food fruit radiation testing with GMC-300E

Food Testing

Seafood radiation detecting and testing with GMC-300E

Seafood Testing

Radioactive Iodine (I-131) Therapy radiation level monitoring with GMC-300E Plus

Radiation Therapy Testing

What's in the box

  • Digital Nuclear Radiation Detector Monitor Meter

    • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    1,748 global ratings

    Customers say

    Customers like the performance, ease of use, value, and battery life of the radiation detector. For example, they mention it works well, the controls are intuitive, and it's great value for the money. Some are satisfied with measurement. That said, opinions are mixed on quality and accuracy.

    AI-generated from the text of customer reviews

    168 customers mention145 positive23 negative

    Customers like the performance of the Geiger counter. They say it works well, has excellent battery life, and has an amazing level of function. Some customers also mention that it works great on uranium glass and is a great instrument for detecting radiation levels. Overall, most are satisfied with the performance and recommend it to others.

    "...This GQ CM300 E Plus seems to work great and was not a disappointment, like the other brand...." Read more

    "Overall it's a great Geiger counter and is easy to use. It works great on the uranium glass I tested it with and got it for...." Read more

    "It worked fine. Tested it on a smoke detector. Ran it for a few days to kill it and it worked fine on low battery...." Read more

    "...I'm very satisfied with it's functions and performance. It gives me and my family peace of mind with regard to the threat of radiation...." Read more

    98 customers mention76 positive22 negative

    Customers find the GQ meter easy to use and learn the features. They say the controls are intuitive and the setup is super easy. Some customers also mention that the meter is fun to use, and it's fun to have in their pocket.

    "...I found the Geiger Counter to be easy to operate. I used it during my radioactive iodine treatment for thyroid cancer...." Read more

    "...This device is very easy to use and understand...." Read more

    "...The user interface is easy enough to use, but there are more options than I need. I’m old school...." Read more

    "...Frustratingly buggy and outdated software.- Flimsy and very basic construction. Wallmart alarm-clock type...." Read more

    61 customers mention58 positive3 negative

    Customers appreciate the value of the radiation detector. They say it works well for the price and is a budget-friendly way to ensure safety.

    "...I loved the price & quality compared to other Geiger Counters...." Read more

    "Amazing device for the price. Does everything I would want it to. I put it through a number of tests and it performed beautifully...." Read more

    "...For the price it is a great unit...." Read more

    "...Great value for the money...." Read more

    44 customers mention32 positive12 negative

    Customers like the battery life of the safety supply. For example, they mention it has a rechargeable battery that lasts a long time, it can be operated non-stop, and it can easily be replaced.

    "I love the sturdy build quality, rechargeable battery, and included diagram. I found the Geiger Counter to be easy to operate...." Read more

    "...The thing hanging on the side is a wrist strap. It has a rechargeable battery inside, and it came charged at 96% out of the box...." Read more

    "...OK while it worked, but after a year it began to act funny and recently totally died. It's been stuck at 0 CPM...." Read more

    "...This is a well built (based on the fact the unit lasted so long on a single charge ) piece of equipment. Recommend highly...." Read more

    21 customers mention21 positive0 negative

    Customers are satisfied with the measurement of the safety supply. They mention that it's great to monitor radiation levels, it detects radiation, and it reads changes in radiation levels. The display is configurable and it'll adjust quickly. It's sensitive enough to easily detect background radiation such as beta and gamma radiation. It can also detect very small traces of nuclear radiation.

    "I’m impressed with this device. It records three different radiations...." Read more

    "...Seems accurate. The numbers adjust quickly and it is easy to measure radiation...." Read more

    "Easy to use interface, configurable display, accurate measurement of nearby radiation." Read more

    "...of just showing the radiation at any moment, radiation can be calculated more accurately by averaging the counts taken over hours...." Read more

    60 customers mention37 positive23 negative

    Customers are mixed about the quality of the safety supply. Some mention it's a good solid product, well made, and reliable. However, others say that it was found to be defective, not durable, and disappointing.

    "I love the sturdy build quality, rechargeable battery, and included diagram. I found the Geiger Counter to be easy to operate...." Read more

    "...This one is really only good for rather low level events...." Read more

    "...This is a well built (based on the fact the unit lasted so long on a single charge ) piece of equipment. Recommend highly...." Read more

    "It holds a charge for a really long time. It is durable as heck...." Read more

    28 customers mention15 positive13 negative

    Customers are mixed about the accuracy of the safety supply. Some mention it monitors CPM and it seems fairly accurate, while others say the readings have been a bit inconsistent, not accurate, and can vary widely depending on just where you check. The issue of calibration haunts them.

    "...This clicks for CPM and shows a large easy to read count. Seems accurate. The numbers adjust quickly and it is easy to measure radiation...." Read more

    "...is really cool and has many and the only problem is that it takes roughly 30 seconds for it to give you a final value." Read more

    "...It works though, the readings are fairly consistent (once the isotope is held right next to the sensor), but in the end I feel that the sensor makes..." Read more

    "...too even while it "worked" because the values would tend to fluctuate too much when placed in the same location especially if I just..." Read more

    21 customers mention4 positive17 negative

    Customers find the PC software that comes with the Geiger counter frustratingly incompatible and outdated. They also say the software is full of bugs and difficult to use.

    "...with the tiniest sensor I have seen and a very outdated and nearly useless software. And it's a pain to install on either of my two systems...." Read more

    "...evaluate the software, as I typically am in MacOS and the software is not compatible...." Read more

    "...Second, The software for the computer is a JOKE...." Read more

    "...I gave it only 3 stars because of the undocumented Mac incompatibility - for performance I'd give it five stars though...." Read more

    Great for my use!
    5 Stars
    Great for my use!
    I love the sturdy build quality, rechargeable battery, and included diagram. I found the Geiger Counter to be easy to operate. I used it during my radioactive iodine treatment for thyroid cancer. I used the data to make a graph of how radioactive I was over time. I loved the price & quality compared to other Geiger Counters. The data I got was in line with my expectations give my dose of RAI (I-131), so I felt it was accurate enough for my nerdy purposes.While I don't recommend thyroid cancer, I do recommend this Geiger counter!
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    Top reviews from the United States

    Merry Caroline Purser
    5.0 out of 5 stars Great for my use!
    Reviewed in the United States on December 19, 2023
    Verified Purchase
    I love the sturdy build quality, rechargeable battery, and included diagram. I found the Geiger Counter to be easy to operate. I used it during my radioactive iodine treatment for thyroid cancer. I used the data to make a graph of how radioactive I was over time. I loved the price & quality compared to other Geiger Counters. The data I got was in line with my expectations give my dose of RAI (I-131), so I felt it was accurate enough for my nerdy purposes.

    While I don't recommend thyroid cancer, I do recommend this Geiger counter!
    Customer image
    Merry Caroline Purser
    5.0 out of 5 stars Great for my use!
    Reviewed in the United States on December 19, 2023
    I love the sturdy build quality, rechargeable battery, and included diagram. I found the Geiger Counter to be easy to operate. I used it during my radioactive iodine treatment for thyroid cancer. I used the data to make a graph of how radioactive I was over time. I loved the price & quality compared to other Geiger Counters. The data I got was in line with my expectations give my dose of RAI (I-131), so I felt it was accurate enough for my nerdy purposes.

    While I don't recommend thyroid cancer, I do recommend this Geiger counter!
    Images in this review
    Customer image
    Customer image
    10 people found this helpful
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    Joan G. Zakrzewski
    5.0 out of 5 stars Really great
    Reviewed in the United States on January 3, 2024
    Verified Purchase
    I’m impressed with this device. It records three different radiations. I found out that there was radiation in my own kitchen at a higher rate than expected. Probably coming from my microwave. Found out from the instructions that there is radiation all over that is natural. This device is very easy to use and understand. Practice it now and if God forbid there is a nuclear war or nuclear power plant melt down, you will understand the readings of radiation. I highly recommend everyone buy this.
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    Daniil
    5.0 out of 5 stars Good stuff!
    Reviewed in the United States on January 14, 2024
    Verified Purchase
    This is great. Many Geiger counters cost too much money; in the end, they have even fewer features than this one. It is really cool and has many and the only problem is that it takes roughly 30 seconds for it to give you a final value.
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    Al Sutton
    4.0 out of 5 stars Good Little tool.
    Reviewed in the United States on December 31, 2022
    Verified Purchase
    It’s seems accurate enough against my certified, calibrated meter from the 1970’s, and that’s saying something. The user interface is easy enough to use, but there are more options than I need. I’m old school. When I took my training that 1970’s analog meter was new! I don’t use the computer interface, so I can’t comment on it. The battery seems to last three or four days on a full charge, and it recharges quickly. It was a hoot to use it on me and my body fluids when I was getting radiological scans earlier this year. My only regret is not buying this company’s higher range meter. This one is really only good for rather low level events. If you need a Geiger counter for working around dangerous radiation levels, buy their higher range instrument.
    32 people found this helpful
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    jims.items
    5.0 out of 5 stars Worked great right out of the box
    Reviewed in the United States on July 24, 2020
    Verified Purchase
    So far, I love my new device. It worked exactly as I expected it to. I had bought a much more expensive ($400) meter from REED (poor and faulty device, inaccurate, returned). This GQ CM300 E Plus seems to work great and was not a disappointment, like the other brand. This clicks for CPM and shows a large easy to read count. Seems accurate. The numbers adjust quickly and it is easy to measure radiation. Move it around and it will change values from like 18 cpm to 38 cpm, so it seems like it is really working. Also, it seems to give consistent readings based on where it is aimed. The thing hanging on the side is a wrist strap. It has a rechargeable battery inside, and it came charged at 96% out of the box. It is portable, you do not have to plug it in to use it (battery must be charged up). I will keep it safe from bashing in my bag. It does not look like it would be rugged for bashing in a bag. Probably better to put in a little box to carry it inside a bag. I did not try any features. Just turned it on and took CPM readings immediately. I did not read the directions. Easy to use. I am using it to detect CPM for various old glass objects in my house and my rock collection.
    8 people found this helpful
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    M. Monroe
    5.0 out of 5 stars Excellent Geiger counter
    Reviewed in the United States on January 12, 2024
    Verified Purchase
    Easy to use interface, configurable display, accurate measurement of nearby radiation.
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    Jeff Flowers
    5.0 out of 5 stars Workhorse - this little device is packing a value punch
    Reviewed in the United States on April 5, 2023
    Verified Purchase
    I got this, sort of for all the wrong reasons. I was worried about the potential of exposure due to a out of country vacation. Well, you can imagine how much I used/looked at this on vacation - vanishingly little. However, when I did - it was ready to rock and roll. In fact, I turned it on and put in my backpack...only, I forgot about it for the following fours days. It was still taking readings and was running like a champ.

    Once I got back home, I decided to 'test' it and grab'ed some materials that I knew to be a bit hotter than background... and it reg'ed these just fine.

    This is a well built (based on the fact the unit lasted so long on a single charge ) piece of equipment. Recommend highly. As for analytical accuracy, that I don't know - as I don't have the necessary testing instrumentation; however, it 'feels' right, if that makes sense.
    13 people found this helpful
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    Crow Mike
    5.0 out of 5 stars I Love This Geiger Counter!
    Reviewed in the United States on November 24, 2023
    Verified Purchase
    It holds a charge for a really long time. It is durable as heck. I wear it hanging off my belt hiking and exploring abandoned mines and it just keeps working. It’s fun to have in my pocket and be able pull it out and easily see if there is elevated radiation levels. It is small enough that I can carry it in my pocket. This is a really good deal.
    2 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    Subir
    5.0 out of 5 stars Works like a magic
    Reviewed in Canada on August 27, 2023
    Verified Purchase
    This is truely one of the best products I have ever purchased from Amazon. Tested this on uranium oxide antique plates, works like a magic.
    Report
    A. Sowden
    5.0 out of 5 stars A useful yet uncomplicated gadget
    Reviewed in the United Kingdom on March 15, 2024
    Verified Purchase
    Walked around my town for an hour and a half in the evening accumulating about 20 millisieverts; delighted to know I don't live in Fallout and will be in the know if Putin or Xi go full Strangelove on us.
    Report
    Client d'Amazon
    5.0 out of 5 stars Bonne qualité prix
    Reviewed in France on January 16, 2024
    Verified Purchase
    Parfait et facile d'utilisation.
    Report
    Stefan Dahlman
    5.0 out of 5 stars Perfekt
    Reviewed in Sweden on October 20, 2023
    Verified Purchase
    Funkar perfekt och enligt beskrivning
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    Christian Treber
    5.0 out of 5 stars Gute Präzision, gutes Preis-/Leistungsverhältnis, an Computer anschließbar
    Reviewed in Germany on December 24, 2021
    Verified Purchase
    Mein Katze bekam eine Radio-Jod-Behandlung, und ich konnte die Werte der Klinik mit dem Gerät gut nachvollziehen. Mit dem Zähler kann ich zu Hause checken, wie viel Reststrahlung in welchem Abstand in Katze und Hinterlassenschaften noch vorhanden ist. Der Zerfall von Jod 131 erzeugt Beta- und Gammastrahlung, die das Gerät erfasst, in guter Übereinstimmung mit den Messungen der Klinik.

    Man kann durch eine Reihe von nützliche Display-Optionen durchklicken und eine Menge Optionen einstellen wie z.B. Schwellwerte für Alarme.

    Das Gerät wird per USB Mini (nicht Micro)-Buchse geladen. Der Akku hält, selbst mit Display-Beleuchtung, leicht mehr als einen Tag Dauerbetrieb.

    Über USB gibt es auch eine serielle Schnittstelle (Protokoll ist offengelegt), mit der z.B. das gute Python-Programm (dadurch ist das Betriebssystem egal) "geigerlog" zusammenarbeitet. Ich lese damit den Speicher aus und logge live mit. Man ḱann damit auch Datum und Zeit setzen. Wie andere schon schrieben driftet das Gerät pro Tag schon mal 15-30sec.

    Alpha-Strahlung wird, wie beworben, NICHT erfasst, so dass meine Uranglas-Dose keine Reaktion erzeugt - dafür sind (teurere) Sensoren mit Alpha-Fenster erforderlich. Wenn ich Rezensionen lesen, dass das Gerät in Tschernobyl/ Pripjat gute Dienste geleistet hat, dann hoffe ich, dass den Rezensenten klar war, dass sie dafür das falsche Gerät dabei hatten, weil es die dort relevante gefährlichste Strahlung gar nicht registriert.
    12 people found this helpful
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