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Top-10 Geiger Counters
Loved in the USA

Handpicked for quality & trusted by thousands of customers

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ALLmeter R
ALLmeter

ALLmeter Rechargeable Portable Geiger Counter Radiation Detector – Digital and Analog Display, Beta Gamma X-ray Monitor, Triple Alarms, USB-C Charging, Compact Design for Home and Outdoor Use

#1
Top Rated in the USA
Smart Geig
Radiacode

Smart Geiger Counter Radiacode-102 with Free Mobile App. Nuclear Radiation Detector

Fast Delivery
10.0
444 reviews

Solid Value from a Trusted Brand

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1 317 bought in past month

Sponsored

ALLmeter R
ALLmeter

ALLmeter Rechargeable Portable Geiger Counter Radiation Detector – Digital and Analog Display, Beta Gamma X-ray Monitor, Triple Alarms, USB-C Charging, Compact Design for Home and Outdoor Use

#2
Nuclear Ra
GQ

Born in the USA

Nuclear Radiation Detector GQ GMC-800 Geiger Counter USA Design Product US National Standard Large Color LCD Display 5 Alarm Types Dosimeter Data Save & Global Share Beta Gamma X-ray Portable Device

Fast Delivery
10.0
687 reviews

Solid Value from a Trusted Brand

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1 215 bought in past month
Last Purchases
B***n
New York, NY
4d ago
L***a
Los Angeles, CA
4d ago
Vi***or
Las Vegas, NV
1d ago
#3
GQ GMC-600
GQ

Born in the USA

GQ GMC-600 Plus Geiger Counter Radiation Detector Dosimeter Alpha Beta Gamma X-ray

8%OFF

Fast Delivery
10.0
219 reviews

Item still has Pre-Tariff price

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1 113 bought in past month
Impressive build and very reasonably priced.
MichaelSeattle, WA
#4
Mazur Inst
Mazur Instruments

Born in the USA

Mazur Instruments PRM-9000 Geiger Counter and Nuclear Radiation Contamination Detector and Monitor, 0.001 to 125 mR hr Range, + -10 Percent Accuracy

Fast Delivery
9.4
110 reviews

Solid Value from a Trusted Brand

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1 011 bought in past month
Curated products trusted bytrust us brands
#5
Geiger Cou
imagesco

Born in the USA

Geiger Counter - Digital - Professional - Model # GCA-06W External Wand Probe - ANSI N323A Certification Ready- 0.001 mR hr Resolution - 1000 mR hr Range

Fast Delivery
8.2
48 reviews

Solid Value from a Trusted Brand

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909 bought in past month
#6
GQ GMC-300
GQ

Born in the USA

GQ GMC-300S Digital Nuclear Radiation Detector Monitor Meter Geiger Counter Radiation Dosimeter

Fast Delivery
8.2
1 132 reviews

Solid Value from a Trusted Brand

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807 bought in past month
#7
Geiger Cou
Gamma-Scout

Geiger Counter Gamma-Scout Alert Version - Hand Held Radiation Detector

5%OFF

Fast Delivery
7.9
1 reviews

Item still has Pre-Tariff price

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705 bought in past month
#8
Geiger Cou
FNIRSI

Geiger Counter Nuclear Radiation Detector - FNIRSI Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched

7%OFF

Fast Delivery
7.3
1 179 reviews

Item still has Pre-Tariff price

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603 bought in past month
#9
GQ GMC-500
GQ

Born in the USA

GQ GMC-500Plus Geiger Counter Nuclear Radiation Detector Monitor Dosimeter, White

Fast Delivery
7.3
1 824 reviews

Solid Value from a Trusted Brand

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501 bought in past month
#10
New GQ GMC
GQ

Born in the USA

New GQ GMC-320 Plus Geiger Counter Nuclear Radiation Detector Data Recorder Beta Gamma x-Ray Test Equipment

Fast Delivery
7.0
877 reviews

Solid Value from a Trusted Brand

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399 bought in past month

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GQ GMC-300
GQ

Born in the USA

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

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1 851
verified reviews

Solid Value from a Trusted Brand

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297 bought in past month
FNIRSI GC-
FNIRSI

FNIRSI GC-03 Geiger Counter Electromagnetic Detector, 3IN1 Nuclear Radiation Detector EMF Meter, Not Support RF Detection, Handheld Rechargeable Radiation Dosimeter, Beta Gamma X-ray Radiation Monitor

Fast Delivery
35
verified reviews

Solid Value from a Trusted Brand

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195 bought in past month
MOESAPU Ge
MOESAPU

MOESAPU Geiger Counter Nuclear Radiation Detector Nuclear Water Seafood Detection Radiation Dosimeter with LCD Display, Portable Handheld Beta β Gamma γ X-ray Rechargeable Radiation Monitor Meter

Fast Delivery
72
verified reviews

Solid Value from a Trusted Brand

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93 bought in past month
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Geiger Cou
CHNADKS

Geiger Counter Nuclear Radiation Detector,CHNADKS Upgraded Personal Dosimeter,Beta Gamma X-ray Portable Handheld Radiation Monitor,Battery Powered (0.08uSv – 50mSv)

Fast Delivery
211
verified reviews

Solid Value from a Trusted Brand

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GQ GMC-500
GQ

Born in the USA

GQ GMC-500 Geiger Counter Nuclear Radiation Detector Beta Gamma X-Ray Dosimeter

11%OFF

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234
verified reviews

Item still has Pre-Tariff price

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Our Top Picks

#1

Winner

Smart Geiger Counter Radiacode-102 with Free Mobile App. Nuclear Radiation Detector

Rating
10.0
Chosen by1,317
Radiation Types Detected
Sensitivity
Display and Readout

Most important from
444 reviews

Radiation Types Detected
Its advanced isotope identification capability sets it apart, allowing users to distinguish between different radioactive materials with confidence.
Sensitivity
The device delivers radiation measurements with impressive speed and accuracy, making it easy to detect even subtle sources like uranium glass or low-level background radiation.
Display and Readout
The accompanying mobile app is intuitive and feature-rich, providing detailed graphs, spectrograms, and data logs that enhance tracking and analysis.
Data Logging and Connectivity
The GPS logging and radiation mapping features transform radiation detection into an interactive experience, perfect for exploring and documenting contamination zones.
Battery Life
Battery life is solid enough for extended use in the field, supporting thorough surveys without frequent recharging.
Durability and Build Quality
Lightweight and compact design makes it convenient to wear or carry during activities like biking, turning radiation monitoring into a seamless part of daily life.

The Radiacode 102 is a modern Geiger counter designed to detect radiation and identify specific nuclear isotopes like Cs-137, Ra-226, and U-238, a valuable feature for users needing detailed information. It uses a scintillation crystal detector combined with a fast microprocessor, allowing it to measure radiation up to 20 times faster than traditional devices. This speed is helpful for moving through areas quickly while obtaining reliable readings without missing spots.

The device also logs radiation levels with GPS, enabling the creation of detailed radiation maps—ideal for professionals or enthusiasts who want a clear overview of contamination zones. It connects to a smartphone or PC via apps, providing access to graphs, spectrograms, and data logs, which enhances usability for tracking and analysis. Additionally, it includes a unique function for checking if food is contaminated, adding a practical safety tool. The device compensates for environmental conditions like temperature changes, ensuring accurate readings in various weather.

Lightweight and compact, the Radiacode 102 is easy to carry. It is well suited for users who want fast, accurate radiation detection with advanced isotope identification and mapping, particularly professionals and serious hobbyists rather than casual or occasional users.

Rating
10.0
Chosen by1,317
Radiation Types Detected
Sensitivity
Display and Readout

Most important from
444 reviews

Radiation Types Detected
Its advanced isotope identification capability sets it apart, allowing users to distinguish between different radioactive materials with confidence.
Sensitivity
The device delivers radiation measurements with impressive speed and accuracy, making it easy to detect even subtle sources like uranium glass or low-level background radiation.
Display and Readout
The accompanying mobile app is intuitive and feature-rich, providing detailed graphs, spectrograms, and data logs that enhance tracking and analysis.
Data Logging and Connectivity
The GPS logging and radiation mapping features transform radiation detection into an interactive experience, perfect for exploring and documenting contamination zones.
Battery Life
Battery life is solid enough for extended use in the field, supporting thorough surveys without frequent recharging.
Durability and Build Quality
Lightweight and compact design makes it convenient to wear or carry during activities like biking, turning radiation monitoring into a seamless part of daily life.
#2

Nuclear Radiation Detector GQ GMC-800 Geiger Counter USA Design Product US National Standard Large Color LCD Display 5 Alarm Types Dosimeter Data Save & Global Share Beta Gamma X-ray Portable Device

Rating
10.0
Measurement Range
Display and Readout
Data Logging and Connectivity

Most important from
687 reviews

Measurement Range
Measurements are very accurate, with only tiny discrepancies compared to other professional equipment.
Display and Readout
The large color LCD display is bright and simple to see, even in low-light conditions.
Data Logging and Connectivity
The five different forms of alarms—sound, vibration, light, data recording, and email notification—offer versatile alert options tailored to various environments.
Battery Life
Battery life is commendable, lasting 2-3 days on a single charge and charging fully in less than an hour.
Durability and Build Quality
Despite being lightweight and plastic, the materials seem sturdy enough to endure everyday handling and occasional drops.

The GQ GMC-800 Geiger Counter is a solid choice for those needing to detect various types of nuclear radiation, including Beta, Gamma, and X-rays. A standout feature is its large color LCD display, which makes readings easy to see, even in bright sunlight. The device is designed for both personal and group use, making it versatile for different scenarios. It offers impressive sensitivity and accuracy, complying with U.S. national standards, which is crucial for reliable measurements.

One of the strengths is its user-friendly interface; it allows for quick navigation and immediate readings, reducing the learning curve for new users. The option for multiple alarm types (visual, audio, vibration, and voice) enhances safety, especially for those with disabilities, as users can tailor alarm levels according to their needs.

Battery life is also commendable due to its rechargeable feature, and the inclusion of data logging and connectivity options allows users to save and share data easily. With memory for up to ten years of data and compatible software for processing, it’s a great tool for long-term monitoring.

The GQ GMC-800 isn't without its downsides. While it’s lightweight and portable, its thin design may not be as durable as some sturdier models, which could be a concern in rugged environments. Additionally, the advanced features, while impressive, might be overwhelming for users who prefer a simpler device without all the bells and whistles. This Geiger Counter is perfect for professionals, hobbyists, or anyone concerned about radiation exposure, providing a good balance of features, accuracy, and usability, though potential users should consider how it fits into their specific needs and environments.

Rating
10.0
Measurement Range
Display and Readout
Data Logging and Connectivity

Most important from
687 reviews

Measurement Range
Measurements are very accurate, with only tiny discrepancies compared to other professional equipment.
Display and Readout
The large color LCD display is bright and simple to see, even in low-light conditions.
Data Logging and Connectivity
The five different forms of alarms—sound, vibration, light, data recording, and email notification—offer versatile alert options tailored to various environments.
Battery Life
Battery life is commendable, lasting 2-3 days on a single charge and charging fully in less than an hour.
Durability and Build Quality
Despite being lightweight and plastic, the materials seem sturdy enough to endure everyday handling and occasional drops.
#3

GQ GMC-600 Plus Geiger Counter Radiation Detector Dosimeter Alpha Beta Gamma X-ray

Rating
10.0
Sensitivity
Display and Readout
Data Logging and Connectivity

Most important from
219 reviews

Sensitivity
The GMC-600+ shows a significant increase in detection sensitivity, revealing much more than older models.
Display and Readout
Readings are easy to read with 'Low,' 'Moderate,' and 'High' warnings based on CPM readings.
Data Logging and Connectivity
It includes Wi-Fi connectivity for live data upload, a nice feature even if not always necessary.
Battery Life
The battery life is impressive, lasting for months without needing a recharge.
Durability and Build Quality
Durable enough to withstand a 4-foot drop onto concrete without issues.

The GQ GMC-600 Plus Geiger Counter stands out in the realm of radiation detection devices. It effectively measures alpha, beta, gamma, and x-ray radiation, making it a versatile tool for both hobbyists and professionals concerned about radiation exposure. One of its key strengths is the large LCD display, which offers both horizontal and vertical options and presents readings in a clear and easily readable format. This is particularly beneficial for users who may not be familiar with technical data. Additionally, the built-in Wi-Fi allows for real-time data logging and unlimited server storage, enhancing its usability for those who need to track radiation levels over time.

Battery life is another plus, as it has a rechargeable battery that ensures long-lasting use, which is essential for fieldwork or extended monitoring sessions. The lightweight design (only 1.59 ounces) makes it portable and easy to carry around.

There are some drawbacks to consider. While the sensitivity is generally good, it may not be as high as some specialized models, which could be a concern for users needing extremely precise measurements. The durability is adequate for general use, but it may not withstand harsh conditions without extra protection. Additionally, while the data logging feature is impressive, the need for Wi-Fi might be limiting in remote areas without connectivity.

Rating
10.0
Sensitivity
Display and Readout
Data Logging and Connectivity

Most important from
219 reviews

Sensitivity
The GMC-600+ shows a significant increase in detection sensitivity, revealing much more than older models.
Display and Readout
Readings are easy to read with 'Low,' 'Moderate,' and 'High' warnings based on CPM readings.
Data Logging and Connectivity
It includes Wi-Fi connectivity for live data upload, a nice feature even if not always necessary.
Battery Life
The battery life is impressive, lasting for months without needing a recharge.
Durability and Build Quality
Durable enough to withstand a 4-foot drop onto concrete without issues.

Buying Guide for the Best Geiger Counters

Choosing the right Geiger counter can be a bit overwhelming, but understanding the key specifications can help you make an informed decision. A Geiger counter is a device used to detect and measure ionizing radiation, which is important for ensuring safety in environments where radiation is present. Whether you need it for professional use, educational purposes, or personal safety, knowing what to look for will help you find the best fit for your needs.
Radiation Types DetectedThis specification indicates the types of radiation the Geiger counter can detect, such as alpha, beta, gamma, and X-rays. It's important because different applications may require detection of specific types of radiation. For example, if you are working in a medical environment, gamma and X-rays might be more relevant, whereas alpha and beta particles might be more important in a laboratory setting. Choose a Geiger counter that detects the types of radiation you are most likely to encounter.
SensitivitySensitivity refers to the Geiger counter's ability to detect low levels of radiation. This is crucial for ensuring accurate readings, especially in environments where radiation levels are expected to be low. Sensitivity is often measured in counts per minute (CPM) per unit of radiation. Higher sensitivity is better for detecting low levels of radiation, while lower sensitivity might be sufficient for environments with higher radiation levels. Consider your specific needs and the typical radiation levels you expect to encounter when choosing the sensitivity.
Measurement RangeThe measurement range indicates the minimum and maximum levels of radiation the Geiger counter can measure. This is important because it determines the device's capability to handle different radiation intensities. A wider range is beneficial for versatility, allowing the device to be used in various settings, from low-level background radiation to high-level radiation environments. Choose a Geiger counter with a measurement range that covers the expected radiation levels in your specific application.
Display and ReadoutThe display and readout feature refers to how the Geiger counter presents the radiation measurements. This can include digital displays, analog meters, or even audio signals. A clear and easy-to-read display is important for quickly understanding the radiation levels. Some models also offer additional information such as dose rate and cumulative dose. Consider how you will be using the device and choose a display type that is easy for you to interpret and suits your needs.
Data Logging and ConnectivityData logging and connectivity features allow the Geiger counter to record measurements over time and connect to other devices for data transfer. This is important for tracking radiation exposure over extended periods and for detailed analysis. Some models offer USB connectivity, Bluetooth, or even cloud storage options. If you need to keep detailed records or analyze data, look for a Geiger counter with robust data logging and connectivity features.
Battery LifeBattery life indicates how long the Geiger counter can operate on a single charge or set of batteries. This is crucial for ensuring the device is reliable and available when needed, especially in fieldwork or emergency situations. Longer battery life is generally better, but also consider the type of batteries used and whether they are easily replaceable or rechargeable. Choose a Geiger counter with a battery life that matches your usage patterns and ensures continuous operation when required.
Durability and Build QualityDurability and build quality refer to how well the Geiger counter can withstand physical wear and tear, as well as environmental conditions such as dust, moisture, and temperature variations. This is important for ensuring the device remains functional in various settings, especially in harsh or demanding environments. Look for models with robust construction, protective casings, and any relevant certifications for durability. Choose a Geiger counter that can handle the conditions you expect to encounter.

FAQ