---
product_id: 500238286
title: "FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched"
brand: "fnirsi"
price: "24039 kr"
currency: ISK
in_stock: true
reviews_count: 10
category: "Fnirsi"
url: https://www.desertcart.is/products/500238286-fnirsi-geiger-counter-nuclear-radiation-detector-radiation-dosimeter-with-lcd
store_origin: IS
region: Iceland
---

# Detects Gamma, Beta & X-rays Rechargeable & portable design Customizable multi-mode alarm FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched

**Brand:** fnirsi
**Price:** 24039 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of invisible threats with precision and style!

## Quick Answers

- **What is this?** FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched by fnirsi
- **How much does it cost?** 24039 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/500238286-fnirsi-geiger-counter-nuclear-radiation-detector-radiation-dosimeter-with-lcd)

## Best For

- fnirsi enthusiasts

## Why This Product

- Trusted fnirsi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Rechargeable:** Lightweight 200g iron body with rechargeable battery ensures you stay protected on the go without bulky gear.
- • **Versatile Dosage Units:** Switch effortlessly between 5 dosage units to match your professional or personal monitoring needs.
- • **Smart Multi-Mode Alerts:** Light, vibration, and sound alarms keep you instantly informed of radiation spikes—never miss a critical warning.
- • **User-Friendly Interface:** Large LCD display with easy one-handed operation and bilingual support (English/Chinese) for seamless use anywhere.
- • **Precision Radiation Detection:** Built-in GM sensor measures 48 KeV-1.5 MeV energy range with ±30% accuracy for reliable safety insights.

## Overview

The FNIRSI GC-01 Geiger Counter is a portable, handheld nuclear radiation detector designed for professionals and safety-conscious individuals. It accurately detects Gamma, Beta, and X-rays within a broad energy range, featuring a built-in GM sensor and customizable alarms (light, vibration, sound) to alert users of hazardous radiation levels. With a rechargeable battery, compact iron body, and multilingual LCD interface, it’s ideal for environmental monitoring, industrial safety, and radiology applications.

## Description

Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched,0.0μSv-500mSv

Review: Detection - Very effective. My cat underwent radioactive iodine treatment, and I needed to protect myself. It's accurate and quick to detect. All my cat had to do was walk by or stand for any period of time. period of time.
Review: Item is ok but room for improvement - Item is ok. Improvements can be made so a sound go off alerting if getting close to dangerous conditions. As this item remains silent.

## Features

- 【Nuclear Radiation Detector】FNIRSI GC-01 Geiger counter nuclear radiation detector with built-in GM sensor, able to detect Gamma, Beta and X-rays. Cumulative dose equivalent: 0.00 uSv-500.0 mSv. Energy range: 48 KeV-1.5 MeV ≤ plus/minus 30%（for 137 Csγ)
- 【Smart Alarm】3 modes of Light/Vibration/Sound. Geiger counter can set current dose alarm value and cumulative dose alarm value. Whether in sleep or active state, the radiation monitor will alarm if the detected radiation dose exceeds the alarm threshold
- 【Multifunctional Geiger Counter】Our the geiger counter has other various setting, such as alarm setting, system clock setting and unit setting & language change,you can operate in English (default) or Chinese. Easy one-handed operation
- 【Working Principle】FNIRSI GC-01 radiation meter uses a trachea or small room as a probe to detect ionizing radiation gamma/Beta/X-ray. Radiation ionization generates ion pairs, ions are enlarged and converted into electrical pulse counts to measure
- 【Application Areas】Widely applied in the environment where existing ionize radiation. Such as home improvement radiation, geological survey, iron, Inspection vehicles, nuclear power plants, industry, radiology, radiology laboratories and so on

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHH9X1WG |
| Batteries | 1 Nonstandard Battery batteries required. |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 226,272 in DIY & Tools ( See Top 100 in DIY & Tools ) 666 in Multi Testers |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,241) |
| Date First Available | 5 Nov. 2022 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | Nuclear radiation detector |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Item model number | GC-01 |
| Manufacturer | FNIRSI-GC-01 |
| Material | Iron |
| Part Number | GC-01 |
| Power Source | Battery Powered |
| Product Dimensions | 12.7 x 5.08 x 2.54 cm; 200 g |
| Style | Compact |

## Product Details

- **Alarm:** Audible, Vibration, Visual
- **Brand:** FNIRSI
- **Item weight:** 200 Grams
- **Material:** Iron
- **Number of items:** 1
- **Operating humidity:** 95 percent
- **Power source:** Battery Powered
- **Product dimensions:** 2.7D x 7.8W x 12H centimetres
- **Sensor type:** Photoelectric
- **Style:** Compact

## Images

![FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched - Image 1](https://m.media-amazon.com/images/I/416x9OxFJvL.jpg)
![FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched - Image 2](https://m.media-amazon.com/images/I/41Uh0urJugL.jpg)
![FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched - Image 3](https://m.media-amazon.com/images/I/41oe1bPOkVL.jpg)
![FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched - Image 4](https://m.media-amazon.com/images/I/41smkUkvFJL.jpg)
![FNIRSI Geiger Counter Nuclear Radiation Detector - Radiation Dosimeter with LCD Display, Portable Handheld Beta Gamma X-ray Rechargeable Radiation Monitor Meter, 5 Dosage Units Switched - Image 5](https://m.media-amazon.com/images/I/51TAFdOGxNL.jpg)

## Questions & Answers

**Q: The device won't power on.**
A: 1.Press the power button briefly, avoid long presses. 2.Use the reset button at the device's bottom. 3.Connect to a computer for firmware update.

**Q: Readings are inaccurate.**
A: 1.Ensure the unit is set to μSv/h, the standard for normal areas.  2.Charge the device if the battery voltage is low.  3.Keep away from strong electromagnetic devices during measurement.

**Q: The device fails to detect radiation.**
A: Conduct a function test: hold a test source close to the detector and check if the reading increases. Update the firmware if software freeze causes data lock.

**Q: How do I switch languages?**
A: Long-press the right button to enter settings, navigate to "Language" with the down button, select English, and confirm with the OK button.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Detection
*by A***R on 17 September 2025*

Very effective. My cat underwent radioactive iodine treatment, and I needed to protect myself. It's accurate and quick to detect. All my cat had to do was walk by or stand for any period of time. period of time.

### ⭐⭐⭐ Item is ok but room for improvement
*by D***N on 4 September 2025*

Item is ok. Improvements can be made so a sound go off alerting if getting close to dangerous conditions. As this item remains silent.

### ⭐⭐⭐⭐ Good for the price.
*by B***B on 13 January 2025*

I was fortunate enough to get the original legit version. Features the J321 GM Tube. Detects the radiation in my smoke detector VERY well when firmware upgraded (Americium-241 Alpha, It's not designed to detect Alpha reliably... but upgraded definitely lets you know of it's presence) . Stock product does not have clicks. If you get the original version, it's good for the little money you pay. Upgraded mine with custom firmware and now got clicks and higher detection rate.

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-22*