---
product_id: 528616815
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: "542.79 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/528616815-fnirsi-geiger-counter-nuclear-radiation-detector-radiation-dosimeter-with-lcd
store_origin: TN
region: Tunisia
---

# 5 dosage units switchable Rechargeable & portable Detects Gamma, Beta & X-rays 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:** 542.79 DT
**Availability:** ✅ In Stock

## Summary

> ☢️ Stay safe, stay savvy: Your pocket-sized radiation watchdog!

## 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?** 542.79 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/528616815-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

- • **Customizable Smart Alarm:** Set light, vibration, or sound alerts for real-time dose and cumulative radiation thresholds—never miss a critical alert.
- • **Compact & Portable Design:** Lightweight 200g iron body fits comfortably in hand or pocket for on-the-go radiation monitoring.
- • **Versatile Professional Use:** Ideal for home safety, geological surveys, automotive inspections, nuclear plants, and radiology labs—stay ahead in any environment.
- • **Precision Radiation Detection:** Built-in GM sensor measures ionizing radiation with ±30% accuracy across 48 KeV-1.5 MeV energy range.
- • **Multifunctional & User-Friendly:** Switch between English and Chinese, adjust system clock, units, and alarms with easy one-handed operation.

## Overview

The FNIRSI GC-01 Geiger Counter is a compact, rechargeable handheld radiation detector with a built-in GM sensor capable of detecting Gamma, Beta, and X-rays. Featuring a clear LCD display and customizable alarms (light, vibration, sound), it supports 5 dosage units and dual-language operation. Lightweight and versatile, it’s designed for professionals and safety-conscious users in environments ranging from home improvement to nuclear facilities.

## 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: Seems good. - No way to tell if it's accurate. But the radiation levels do change over time. So far the radiation levels are low.
Review: Defected not working - Defected

## 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 |
| Brand | FNIRSI |
| Brand Name | FNIRSI |
| Customer Reviews | 4.2 out of 5 stars 1,340 Reviews |
| Included Components | Nuclear radiation detector |
| Item Dimensions | 12.7 x 5.1 x 2.5 centimeters |
| Item Weight | 200 Grams |
| Item dimensions L x W x H | 12.7 x 5.1 x 2.5 centimeters |
| Item weight | 200 Grams |
| Manufacturer | FNIRSI-GC-01 |
| Material | Iron |
| Material Type | Iron |
| Model | GC-01 |
| Output Type | digital |
| Output type | digital |
| Part Number | GC-01 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | home improvement, geological survey, automotive, nuclear power plants, industry, medical, radiology laboratories |
| Style | Compact |
| Style Name | Compact |
| Unit Count | 1 Count |

## Product Details

- **Brand:** FNIRSI
- **Item dimensions L x W x H:** 12.7 x 5.1 x 2.5 centimeters
- **Item weight:** 200 Grams
- **Material:** Iron
- **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/613MADyzBsL.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

### ⭐⭐⭐⭐⭐ Seems good.
*by C***R on 19 August 2025*

No way to tell if it's accurate. But the radiation levels do change over time. So far the radiation levels are low.

### ⭐ Defected not working
*by L***A on 9 March 2026*

Defected

### ⭐ Poor quality
*by U***1 on 23 June 2025*

Very poor quality product. Stopped working after I tried charging it.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-15*