Gas detection3
Respiratory protection4
Technical rescue9
Firefighting4
Safety & environment4
Personal protective equipment2

GfG Microtector II G450 — compact 4-gas detector
The GfG Microtector II G450 is a compact, award-winning 4-gas detector for protecting workers in all working conditions. It detects oxygen (O₂), hydrogen sulfide (H₂S), carbon monoxide (CO) and explosive gases (e.g. CH₄), warning of toxic and combustible gases and of oxygen deficiency and excess. A water- and dust-tight housing (IP67), a loud alarm (103 dB) and simple three-button operation make it a reliable, convenient everyday tool.
The GfG Microtector II G450 is a compact, award-winning 4-gas detector for worker protection in all working conditions. It detects oxygen (O₂), hydrogen sulfide (H₂S), carbon monoxide (CO) and explosive gases (e.g. CH₄), warning of toxic and flammable gases as well as oxygen deficiency and excess. A water- and dust-tight enclosure (IP67), a loud alarm (103 dB) and simple three-button operation make it a reliable and convenient everyday tool.
Key features
- Four gases: O₂, H₂S, CO and explosive gases (e.g. CH₄).
- Compact, lightweight enclosure (290 g); IP67 water- and dust-tightness.
- Loud 103 dB audible alarm; innovative optical alarm system.
- 180°-rotatable display; three-button operation.
- Logging of concentrations and alarms over 30 hours (every 1 min).
- EN 60079-29-1, EN 50104, EN 45544 certificates; EXAM and DEKRA (ATEX).
Technical specifications
| Parameter | Value |
|---|---|
| Type | compact 4-gas detector |
| Measured gases | O₂, H₂S, CO, explosive gases (e.g. CH₄) |
| Weight | 290 g |
| Protection rating | IP67 |
| Alarms | optical (innovative system), audible 103 dB, visual |
| Display / operation | rotatable 180°; 3 buttons |
| Data logging | 30 hours (every 1 minute) |
| Certificates | EN 60079-29-1 (explosive gases), EN 50104 (oxygen), EN 45544 (toxic gases); EXAM, DEKRA; ATEX |
| Origin | Made in Germany |
Applications
Personal worker protection, confined spaces, industry, gas industry, water treatment and wastewater, rescue services.
Frequently asked questions (FAQ)
What gases does the GfG Microtector II G450 detect?
Four gases: oxygen (O₂), hydrogen sulfide (H₂S), carbon monoxide (CO) and explosive gases (e.g. methane CH₄).
What protection rating does the G450 have?
The enclosure is water- and dust-tight to IP67, and the audible alarm has a loudness of 103 dB.
Does the G450 log data?
Yes, it records gas concentrations and the alarms that occur over 30 hours (every 1 minute).
Brand & service
GfG — available from SafeTech together with expert sensor configuration selection, calibration, certification and service.
Why SafeTech
- 23 years of experience in gas detection (in business since 2003).
- Distribution and support for the GfG brand; sensor configuration selection for your application.
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — service across Poland.
- Training and technical support (SafeTech Safety Academy).
Availability & service — Gdynia and Tricity
GfG Microtector II G450 — compact 4-gas detector — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomerania region and all of Poland. Ask about a quote and availability.
Accessories and compatible equipment
- Calibration & bump test: stacja GfG DS400, calibration gas mixtures, regulators and pressure-reducing valves for cylinders.
- Sensors & filters: replacement sensors matched to the measured gas, dust and hydrophobic filters.
- Sampling: probe, hose, aspirator bulb (for diffusion versions).
- Carrying & protection: lanyard, clip, holder, transport case, charger/power supply.
Full selection of accessories and parts for this model — request a quote.




