





From the brand

About GQ Electronics
GQ Electronics LLC is a registered technological company based in Seattle, WA. USA. Since 2010.

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.
About GQ
GQ’s New Geiger Counter Series
Advanced GQ Products
GQ Programmer
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.

Best Seller: GQ GMC-800

Best Seller: GQ GMC-600 PRO

Best Seller: GQ GMC-500 Plus

Best Seller: EMF-390 EMF Meter
Product Dimensions : 4.75 x 2.75 x 0.75 inches; 7.83 ounces
Item model number : GMC-300S
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : June 25, 2022
Manufacturer : GQ Electronics LLC
ASIN : B0B541D433
Best Sellers Rank: #4,732 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Lab Geiger Counters
Customer Reviews: 4.6 4.6 out of 5 stars (1,172) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Real-time data logging every second into internal memory.
History data can be downloaded to computer
Rechargeable battery last longer
Free data Viewer PC software
Dosimeter mode, CPM count mode, Graph mode




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