The GX-3R PRO is one of the world’s smallest and lightest portable multi-gas detectors, making it ideal for continuous personal monitoring. Despite its compact size, it delivers reliable detection of multiple hazardous gases while offering exceptional durability for harsh operating environments.
The detector can simultaneously monitor:
Optional sensor configurations are available for:
This flexibility makes the GX-3R PRO suitable for a wide range of industrial and marine safety applications.
| Specification | Details |
|---|---|
| Model | Riken Keiki GX-3R PRO |
| Gas Detection | Up to 5 Gases |
| Standard Sensors | O₂, LEL, CO, H₂S |
| Optional Sensors | CO₂, SO₂, NH₃, NO₂, HCN, PH₃ |
| Sampling Method | Diffusion |
| Communication | Bluetooth Low Energy (BLE) |
| Alarm Types | Audible, Visual & Vibration |
| Protection Rating | IP66 / IP68 |
| Operating Temperature | -40°C to +60°C |
| Safety Approval | Intrinsically Safe |
| Battery | Rechargeable or Alkaline |
The Riken Keiki GX-3R PRO is designed for hazardous-area applications and meets internationally recognized safety and environmental requirements.
Regular calibration, inspection, and maintenance help maintain the detector’s accuracy, reliability, and safe operating performance.
Looking for Riken Keiki GX-3R PRO Multi Gas Detector supply, calibration, or service support?
Contact Swift Marine Tech Services Pte Ltd for expert assistance, genuine products, professional calibration, and reliable marine gas detection solutions tailored to your vessel requirements across USA, Canada & UK Region.






The Riken Keiki GX-3R PRO is engineered for continuous personal gas monitoring in confined spaces and hazardous work areas. Its compact design and advanced sensing capabilities make it ideal for marine engineers, offshore personnel, safety inspectors, and industrial maintenance teams.
The detector simultaneously monitors up to five gases, including:
Available sensor configurations include: