GQ Electronics Geiger Counters Ranked

Last updated: November 9, 2026

6 GQ Electronics geiger counters ranked. Each one is scored and ranked against every brand in its detector type, so "#3 mid-size" means third of all mid-size geiger counters here, not third among GQ Electronics's own.

GQ Electronics makes 6 current geiger counters: 5 beta-gamma geiger counters and 1 alpha-beta-gamma counters. Prices run from $55.98 for the GQ GMC-300S to $298 for the GQ GMC-600 Pro. Its best-rated model in each size: the GQ GMC-500+ (#1 of 9 beta-gamma geiger counters, rated 3.2) and the GQ GMC-600 Pro (#1 of 7 alpha-beta-gamma counters, rated 3.4).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Top-rated GQ Electronics
GQ GMC-600 Pro
#1 in Alpha-beta-gamma counters3.4Full review

The best value alpha-capable counter, with the same pancake tube as meters costing twice as much. A strong pick for checking surfaces, glass and minerals.

Amazon $298
$298
Mica window GM tube348 CPM/µSv/h4,250 µSv/h

GQ Electronics geiger counters 6

  1. GQ GMC-600 Pro
    #1 alpha-beta-gamma counters3.4Full review

    The best value alpha-capable counter, with the same pancake tube as meters costing twice as much. A strong pick for checking surfaces, glass and minerals.

    Amazon $298
    $298
    Mica window GM tube348 CPM/µSv/h4,250 µSv/h
  2. GQ GMC-500+
    #1 beta-gamma geiger counters3.2Full review

    The GQ to buy if you want a counter that keeps working at high dose rates. It suits emergency kits as well as everyday monitoring.

    Amazon $128
    $128
    GM tube138 CPM/µSv/h42,500 µSv/h
  3. GQ GMC-500
    #2 beta-gamma geiger counters3.1Full review

    A good value desk or window monitor that posts readings online over Wi-Fi. Pick the 500+ if you want readings at very high levels.

    Amazon $118
    $118
    GM tube138 CPM/µSv/h4,250 µSv/h
  4. GQ GMC-800
    #5 beta-gamma geiger counters2.8Full review

    A cheap, easy-to-read beta-gamma counter with a big screen and a lot of memory. Good for a first counter at home.

    Amazon $85.98
    $85.98
    GM tube132 CPM/µSv/h2,000 µSv/h
  5. GQ GMC-300S
    #6 beta-gamma geiger counters2.8Full review

    A basic, cheap beta-gamma counter for checking background levels and hobby samples. Buy it to learn, not for emergencies.

    Amazon $55.98
    $55.98
    GM tube132 CPM/µSv/h328 µSv/h
  6. GQ GMC-320 Plus
    #7 beta-gamma geiger counters2.6Full review

    A long-running data-logging Geiger counter for steady background monitoring at a desk. The GMC-800 costs about the same and publishes more.

    Amazon $97
    $97
    GM tube-328 µSv/h

Every geiger counter ranked