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The GQ GMC-600 Plus digital Geiger Counter installed a high sensitive Pancake Geiger tube LND 7317 for Alpha, Beta, Gamma and X-Ray radiation detection. Three display modes provide very high flexibility display mode. The graph mode provide last 60 seconds data changes instantly. Large font display let the data easy to read. Timed count with scheduler.
Specification:
- Radiation Detection: Alpha, Beta, Gamma and X-Ray .
- Detection Dose Range: 0 ~ 4250uSv/h
- Detection CPM Range: >1,000,000 CPM
- Minimum Detectable Energy Range: Beta, Gamma, X-Ray: ~0.1 MeV, Alpha ~2.0 MeV
- Own Background: 0.2 Pulses/s
- Working Voltage: 3.2-4.0V
- LCD Display: Dot matrix with back light
- Working power: 0.045W - 0.2W
- Power: 3.6V/3.7V battery / USB power/Rechargeable
Open Protocol, Online Support, Free Software
GQ GMC-600 Plus provides open GQ RFC1201 communication protocol for easier system integration.
User is able to operate the unit by sending the serial commands.
User is also able to write customized software.
QQ Electronics website provides online technical support forum for easy and fast support.
User can download and try the exact copy of GMC-600 Plus user interface demo software before you buy it.
USA High Sensitivity Sensor
Multiple Display Mode
Full User Configuration
A.g.
Reviewed in Germany on February 25, 2025
I think this 600+ are the best if you want only one geiger to check if something is radioactive or not. Because can detect alfa, beta and gamma and it's very fast when something is radioactive in museum or antique shops. And battery last forever:) very nice think is that it has usb C contactor for charging
James
Reviewed in the United States on May 1, 2024
Just as the title says, it's an amazing Geiger Counter for the price point. I needed a pancake tube Geiger Counter for alpha detection and this gets the job done wonderfully. It's got a wonderful UI (multiple options on how to display the text and a screen that rotates to fit current orientation), a solid amount of detection customization (including voltage adjustment and accuracy requirements), and even wifi connectivity to upload live data to a server (I don't need it specifically but it's a nice feature to have). You could of course go for something like a Gamma Scout if you need more precision and more detection features. But you'd then be paying double and likely waiting a lot longer to receive it (they were on backorder last time I checked). This however arrived 5 days after I ordered it. Overall, it's a solid detector with a lot of great features, customization, and solid quality for a very affordable price. I'm definitely going to be looking to GQ for any future detector needs.
Zack Wright
Reviewed in the United States on March 13, 2024
I had a Geiger counter the 500+, and I decided to upgrade to the 600 though it might be thicker and larger slightly heavier the quality of this machine, and it’s cap capabilities is absolutely absolutely outstanding!!! Where my 500+ would only partial counts on the radiation levels on Uranium glass glass and uranium glaze along with radium, the 600+ shows everything and the numbers increased tenfold!!! It’s unreal to realize how much I was missing and not knowing the count per minute of radiation that I was receiving before I had the counter now I can store everything safely and appropriately! I happen to notice how durable this product is as well. I accidentally dropped my Geiger counter and thought it would truly break, but it held up 4 foot drop to concrete no issues.!!! Very impressive along with the battery life I’ve had this Geiger counter for months and my batteries still not to half!!! it comes with chargers and everything you need with the radiation level chart overall and an amazing product and will definitely recommend this to anybody!!!
DFC
Reviewed in Singapore on September 16, 2023
A very good product with high sensitivity and accurate counting.
Customer ...
Reviewed in Canada on March 5, 2023
Low cost - 'professional quality' - accurate right out of the box. Alpha. Beta, Gamma detector - can be user re-calibrated if needed. Multiple alarm settings. Easy connect to wifi - can upload data to world map (gmcmap dot com) to compare with other regions around the world. I bought this model after previously buying the GQ-500+. several years ago. They are worth the cost. Manual Text input for wifi params is time consuming - use the supplied 'GQ Data Viewer' program / app instead to easily set it up over USB.
jbourdon
Reviewed in the United Kingdom on December 5, 2022
exactly what i was looking for.design could be better though. something more friendly to hold/point.comes with a nice little casealso, it is mini usb not even mini or usb-c :-(
A. Stoev
Reviewed in the United States on January 19, 2021
I must say - if your are looking for an alpha-capable, "pancake" type detector with tons of feature - you cant go wrong with GQ-600 Plus. I have a whole bunch of different counters - Gamma Scout, Ludlum Model 3, Eberline ASP-1, Ludlum model 14C, SE International Alert Ranger and to be honest GQ-600+ is my favorite everyday counter!This design and execution has a lot of potential but some small details make it a bit annoying and unpolished.- plastic enclosure is made of thin brittle plastic which cracks VERY easily and feels extremely cheap - my unit cracked after 1 ft. drop onto a thick carpet (!!!)- the enclosure doesn't have the best ergonomics and feels a bit like you are holding a brick- buttons are missing any sort of markings and even for someone quite familiar with the unit, daily usage can be annoying when navigating thru the menu system.- the placement of the tube on the back of the unit is awkward, off-center and no markings on the front to remind of the exact location - this is really annoying when checking specific objects. I had to use a silver Sharpie to mark the tube's location and center on the front , around the display as a reference.- software has some bugs here and there and the whole UI is not quite polished - for an example when you have high reading (with 2 significant digits on the secondary display line) the "HIGH" msg partially covers the first digit making it unreadable. In Food Measurement mode another bug turns off the speaker and so on... They fixed the speaker bug in a new firmware release and didn't miss the chance to introduce a new one in the latest version when the unit will crash and restart, when it Text mode and reading is pretty high.- the company doesn't publish any firmware changelog or even the current version number and you just cant get the latest version from their website - you'll need to deal with their Support department back and forth until they send you an update.- they added a dosimeter function but did not update the manual for it.I love the wealth of information and features, the flexibility and settings and the large and readable display. The potential to be the best digital GM counter out there is definitely present but they need to go the extra mile and polish the UI, firmware and possibly revisit the flimsy enclosure.A protective cap on the back similar to the one of the Radiation Alert Ranger which can be used as an Alpha or Alpha+Beta shield would be a fantastic addition.Its a pity that GQ doesn't react to the feedback provided in their forum but there are enough good features in this counter for me to buy it again if need be.
Tennessee Phil
Reviewed in the United States on September 12, 2019
The GQ GMC-600+ is a nice unit that's easy to use. The readings are easy to read. It also includes "Low," "Moderate," and "High" warnings based on the CPM reading. It would be nice if they provided a carrying case or protective boot. If you drop it on a hard surface, I doubt the plastic case will survive.I compared the GMC-600+ CPM reading with an S.E. International Ranger Alert reading with both of them flat on a granite countertop. The readings were essentially the same.I bought a uranium ore sample to use for testing/demonstration. It came in a metal container with a certification document from "Images SI Inc." stating that they tested the sample and measured 1,682 CPM using their GCA-07W geiger counter.To avoid contamination, I left the sample in its plastic bag while I tested it with my S.E International Ranger Alert and my GQ GMC-600+. Both the Ranger and the GMC-600+ have open windows with pancake detectors. Here are my results:Ranger readings:Direct contact with the plastic bag = 9,400 CPMSeparated by a piece of paper = 6,400 CPMWith plastic cap covering detector hole = 1,650GQ GMC-600+Direct contact with the plastic bag = 6,700The Ranger has a fine grid over the detector opening. The GMC-600+ has a plastic mesh covering a screen. So the sample was about 5 mm further from the GM tube and partially covered by the plastic grid.My conclusion is that both the GMC-600+ and the Ranger are much more sensitive than the GCA-07W. The Ranger is the most sensitive probably due to the fine mesh protector and the proximity of the grid to the GM tube.
Client d'
Reviewed in France on May 22, 2019
J'ai acheté cet appareil pour débuter dans la compréhension de la radio-activité et je ne regrette pas mon achat.Un point très positif, bien que cet appareil vienne du Canada, je n'ai pas eu à payer de taxe supplémentaire, sur le document joint au colis il était indiqué que l'expéditeur prenait en charge les taxes de douane éventuelles.Ce modèle coûte un peu plus cher mais a l'avantage de détecter les rayons Alpha.Les rayons Alpha sont les plus nocifs en ce qui concerne les produits alimentaires.Ils sont aussi présents lorsqu'ils y a du Radon.Cela me permet de faire des expérimentations tout en sachant que cet appareil n'est pas suffisant pour quantifier les radiations d'aliments (il faudrait un appareil pour identifier les différents isotopes, qui coûte, lui plus de 1000 €), mais permet d'identifier les aliments qui ne sont pas du tout radioactifs. Pour le Radon, cet appareil n'est pas non plus prévu pour quantifier ce gaz radioactif, mais m'a permis de soupçonner une présence de Radon dans ma maison (différence de radioactivité ambiante entre ma cave et les autres niveaux de ma maison).Ce qui a été vérifié à l'aide d'un autre appareil (115 Bq/m3 au rez-de-chaussée et probablement 250 à 300 Bq/m3 au sous-sol (mesure en cours et donc pas encore précise (pour une mesure précise il faut 4 semaines de mesures))).Je referme la parenthèse du Radon, le GMC-600 Plus m'a permis d'identifier certains objets radioactifs et si leur radioactivité était dangereuse ou non. Par exemple, un petit récipient à cacahuètes jaune fluorescent, provenant de ma grand-mère, celui ci contient de l'Uranium appauvri, mais n'est pas dangereux car produit une dose de radiation trop faible. Par contre il y a des manchons (un espèce de bout de tissu) pour lampes à gaz qui sont très radioactifs, la dose maximale annuelle au toucher serait atteinte en a peine 10 minutes ! J'ai aussi pu mesurer qu'une figurine luminescente vendue sur internet et contenant soit-disant du radium n'en contenait en réalité pas du tout.Il y a aussi d'autres objets que je n'ai pas eu l'occasion de tester mais dont il faut se méfier : des pendentifs sensés produire des Ions bénéfiques (très radioactifs), des pendentifs lumineux (j'en ai commandé un pour tester si radioactif ou pas, le vendeur m'a indiqué qu'il contient du phosphore => un poison !), il y a aussi des pommes de douches contenant des granulés donnant des Ions (idem que pendentif ?), des porte clés lumineux contenant du tritium (un gaz très légèrement radioactif, pas dangereux tel quel, mais très dangereux si il se casse (inhalation du gaz radioactif)), etc ... Si le sujet vous intéresse, je vous conseille de regarder les vidéos de la CRIIRAD sur YouTube ou de Sébastien BILLARD. :o)
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