Riken Keiki GX-3R Pro
Advanced 5-gas personal monitor with dedicated CO₂ sensor. Compliant with IMO Resolution MSC.581(110) for atmospheric testing in enclosed spaces.

Riken Keiki
GX-3R Pro advanced portable multi-gas detector
The Riken Keiki GX-3R Pro is an advanced portable multi-gas detector designed for professional use in marine, offshore and industrial environments. It fully complies with the latest maritime safety standards, including Resolution MSC.581(110), meeting mandatory requirements for atmospheric testing within enclosed spaces on board ships.
In addition to monitoring combustible gases (LEL), oxygen (O₂) and CO/H₂S, the GX-3R Pro features a dedicated sensor for Carbon Dioxide (CO₂), providing essential protection against this odourless hazard. Engineered for durability and precision, the device features a rugged, compact housing with IP66/IP68 protection, ensuring dependable performance even in harsh environments.
With its lightweight design and long battery life, the GX-3R Pro is ideal for continuous personal monitoring throughout long shifts. Enhanced reliability, minimal maintenance requirements and consistent measurement accuracy make it a trusted solution for professionals who depend on precise gas detection every day.
Specifications
- Target gas
- LEL, O₂, CO, H₂S, CO₂ (configurable)
- Sampling method
- Diffusion type
- Principle of detection
- Catalytic combustion (LEL), electrochemical sensors, NDIR (CO₂)
- Type of alarm
- Gas alarm / fault alarm
- Alarm indication
- Visual (LED), audible (buzzer), vibration alarm
- IP rating
- IP66 / IP68
- Approvals
- ATEX, IECEx, Japan Ex
- CE marking
- EMC / ATEX / RoHS
- Power source
- Rechargeable lithium-ion battery
- Continuous operation
- 25 hours (fully charged)
- Dimensions
- Approx. 58 × 65 × 26 mm
- Weight
- Approx. 100 g
- Operating temperature range
- -20 °C to +50 °C
- Compliance
- IMO Resolution MSC.581(110)
Downloads
Datasheets and manuals for the Riken Keiki GX-3R Pro. Files open in a new tab.


