






โก Stay ahead of invisible threats with FNIRSIโs cutting-edge radiation guardian!
The FNIRSI GC-01 Geiger Counter is a compact, rechargeable radiation detector equipped with a built-in GM sensor that accurately measures Gamma, Beta, and X-ray radiation across a broad energy range. Featuring customizable alarms with light, vibration, and sound modes, it ensures real-time alerts for radiation exposure. Designed for professionals and safety-conscious users, it supports multiple dosage units and languages, making it perfect for diverse environments from home safety to industrial and medical applications.












| ASIN | B0BHH9X1WG |
| Best Sellers Rank | 289,419 in DIY & Tools ( See Top 100 in DIY & Tools ) 678 in Multi Testers |
| Brand | FNIRSI |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,323) |
| Included Components | Nuclear radiation detector |
| Item Dimensions | 12.7 x 5.1 x 2.5 centimetres |
| Item Weight | 200 Grams |
| Manufacturer | FNIRSI-GC-01 |
| Manufacturer Part Number | GC-01 |
| Material | Iron |
| Model Number | GC-01 |
| Style Name | Compact |
| Unit Count | 1.0 count |
A**R
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.
B**B
Good for the price.
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.
D**N
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.
P**Y
Gives readings way below actual radiation levels, therefore may be dangerous to trust the readings.
Returned for a refund after comparing it with a friend's proper Geiger -muller tester, this one gave stupidly low results compared to actual radiatin, so is not only rubbish at the job, but could lead one to get a higher radiation dose than expected because of the bad readings which were way lower than actual radiation levels. Avoid, spend the bigger money on a proper grown up version!
I**N
It doesn't work for long .
Worked for 4 or 5 days then packed up , permanent red light on , tried recharging but it no long works, Currently in the process of returning it .
A**S
Unreliable junk
It literally FRIED(never turns on anymore) after touristing MINOR radiation hotspots
C**R
No way to tell if it's accurate. But the radiation levels do change over time. So far the radiation levels are low.
J**E
Works effectively as a radiation detector. Have used to check in house and surrounding areas around home and office. Helps keep peace of mind. Low battery consumption.
D**N
Excellent device. Hope I never need it. ๐๐ฝ
F**S
Excellent
N**O
Excelente
Trustpilot
1 month ago
2 days ago