# Fnirsi GC-03 BK Multifunctional Ionizing Radiation Detector

**URL:** https://aio.lv/en/product--fnirsi-gc-03-bk--12426870
**Data updated:** 2026-05-10 04:44 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Fnirsi
**Manufacturer code:** GC-03 BK
**EAN:** 5905156102330
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 83.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 69.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fnirsi-gc-03-bk--12426870

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Fnirsi GC-03 BK is a professional-grade multifunctional ionizing radiation detector designed for precise measurement of X-rays, gamma rays, and beta rays. This portable device provides real-time monitoring of radiation levels, featuring an intuitive interface and high sensitivity for environmental safety assessments. Ideal for laboratory use, industrial monitoring, and personal radiation protection, it ensures reliable detection and data analysis in various conditions.

## Long description

The FNIRSI GC-03 BK is an advanced, user-friendly multifunctional ionizing radiation detector that integrates measurements for nuclear radiation, electric fields, and magnetic fields. Designed for both home users and professionals, this device provides high precision, rapid response times, and an intelligent alarm system, all displayed on a clear 2.4-inch color screen. It is a versatile tool for maintaining environmental awareness and safety.
Advantages
This device stands out by combining three measurement functions into one compact unit, which saves space and simplifies environmental monitoring. It utilizes an energy-compensated Geiger-Müller tube to ensure stable and reliable detection of ionizing radiation. The inclusion of a dynamic graph mode allows users to track radiation trends in real time, while the alarm history feature records up to 50 events for comprehensive data analysis. With its triple alarm system—audible, vibration, and visual—users are always alerted to potential hazards promptly. Furthermore, the device features a robust design, a long-lasting battery, and the capability for firmware updates to ensure long-term utility.
Suitable for
Monitoring natural background radiation levels
Assessing electromagnetic fields from household appliances and electronics
Industrial radiation safety inspections
Educational purposes and laboratory research
Personal environmental safety assessments
This device may not be suitable for high-precision scientific research requiring specialized laboratory-grade equipment or for detecting specific types of alpha radiation, as the Geiger-Müller tube is primarily optimized for gamma, X-ray, and beta radiation. It is intended for general monitoring and safety assessment rather than certified regulatory compliance testing.
Key specifications
Radiation measurement range: 0.00 to 10,000 μSv/h
Electric field range: 1 to 1999 V/m
Magnetic field range: 0.01 to 99.99 μT
Display: 2.4-inch color LCD
Battery: 1500 mAh rechargeable via USB-C
Dimensions: 138 × 63 × 32 mm
Weight: 141 g
Measurement units: μSv/h, μGy/h, mR/h, CPS, CPM
How to use
To begin, power on the device using the control knob. Navigate through the menu to select your desired operating mode, such as quick view, professional, or dynamic graph mode. The device will immediately begin monitoring the environment. You can configure custom alarm thresholds to suit your specific safety requirements. The screen provides real-time data, and the device will trigger an alert if radiation or field levels exceed your set limits. Use the USB-C port to charge the internal battery as needed.
What to consider before purchase
Verify that the measurement ranges meet your specific safety requirements.
Note that the device menu is available in English and Chinese.
Consider the intended environment, as this is a portable device for general monitoring.
Ensure you are comfortable with the operation of a rotary knob interface.
Usage recommendations: For the most accurate results, keep the device away from direct contact with high-voltage sources and ensure the sensor area is not obstructed. Regularly check for firmware updates to benefit from the latest performance improvements.

## FAQ

### How much does the Fnirsi GC-03 BK Ionizing Radiation Detector cost, and is it available for purchase?

The price is 83.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 66 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Fnirsi GC-03 BK Ionizing Radiation Detector be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Fnirsi products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Fnirsi service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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