Under $150 you get a sidewall GM tube counter, a basic scintillation dosimeter or a solid-state monitor. They read gamma and X-rays well enough for background checks, and most also read beta, but none detect alpha or record a spectrum. Check the top of the range before you buy one for an emergency kit, since several stop reading at a few hundred µSv/h.
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.
Best Geiger Counters Under $150: Beta-gamma Geiger counters
- GQ GMC-500+#1 of 8Full 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$128GM tube138 CPM/µSv/h42,500 µSv/h - GQ GMC-500#2 of 8Full 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$118GM tube138 CPM/µSv/h4,250 µSv/h - MOESAPU FS-5000#3 of 8Full review
A cheap counter with a wide listed range for an emergency drawer. Its low sensitivity makes it a poor choice for checking samples.
Amazon $64.99$64.99GM tube60 CPM/µSv/h50,000 µSv/h - FNIRSI GC-01#4 of 8Full review
A cheap pocket Geiger counter for a curious first look at background radiation. Serious users will want more sensitivity and logging.
Amazon $51.29$51.29GM tube80 CPM/µSv/h- - GQ GMC-800#5 of 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$85.98GM tube132 CPM/µSv/h2,000 µSv/h - GQ GMC-300S#6 of 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$55.98GM tube132 CPM/µSv/h328 µSv/h - GQ GMC-320 Plus#7 of 8Full 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$97GM tube-328 µSv/h - FNIRSI GC-03#8 of 8Full review
A cheap combined radiation and EMF meter for casual checks around the house. It is not a precise radiation instrument.
Amazon $79.99$79.99GM tube80 CPM/µSv/h-
Best Geiger Counters Under $150: Scintillation and solid-state
- Aranet Radiation#1 of 2Full review
A set-and-forget home radiation monitor with a long battery life and a tidy app. It is not a tool for checking samples.
Amazon $139$139Solid-state sensor-1,000 µSv/h - AKSTEST HFS-50-CsI#2 of 2Full review
A low-cost scintillation dosimeter for general monitoring. Too little is published to rank it with the Radiacodes.
Amazon $149.99$149.99Scintillator-20,000 µSv/h
