Portable & Fixed Systems
Single- and multi-gas detectors, confined-space kits, sample pumps and fixed shipboard gas detection systems from leading manufacturers.
Services › Gas Detectors & Calibration
RIKEN KEIKI Gas Detectors & Spare Parts
Reliable gas detection is essential on board — ensuring crew safety, protecting equipment and meeting international regulations. At Woell Marine we focus on proven solutions from Riken Keiki, including the GX-9000, GX-9000H, GX-3R and GX-3R Pro. Combined with our full range of original spare parts, calibration accessories and fast global support, we keep your gas detection systems ready for operation whenever you need them.
Calibration & Repair
Bump tests, full calibration, sensor replacement and functional repair — on board or in our Hamburg workshop, with traceable certificates.
SOLAS & IMO Compliance
Compliant with SOLAS Chapter XI-1/7 and IMO MSC.1/Circ.1477 requirements for portable atmosphere testing instruments on board.
Scope of Service
- Riken Keiki portable and fixed gas detectors
- Multi-gas confined space entry kits
- Annual calibration and bump testing
- Sensor replacement (O2, LEL, CO, H2S, VOC) + CO₂
- Sample pumps, hoses and probes
- Fixed gas detection system service
- Calibration gas supply worldwide
- Class-approved calibration certificates
Class-Ready Certificates — Worldwide
All instruments are returned with traceable calibration certificates accepted by IACS-member class societies and flag administrations.
Featured Gas Detectors
Discover professional gas detection solutions from Riken Keiki — tailored to your onboard requirements.
Riken Keiki
GX-9000
Portable multi-gas detector for confined space entry and tank inspection — simultaneous detection of up to six gases with advanced sensor technology.
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Riken Keiki
GX-9000H
Portable multi-gas detector for hazardous, hydrocarbon-rich atmospheres. Precise multi-gas monitoring, fast response and robust performance.
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Riken Keiki
GX-3R
Ultra-compact 4-gas personal monitor — lightweight, durable and ideal for continuous wear during everyday onboard operations.
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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.
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Riken Keiki
SDM-3R Calibration Station
Automates calibration, bump testing, alarm check and charging of GX-3R and GX-3R Pro gas detectors — reliable maintenance in safety-critical environments.
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Riken Keiki
Gas Suction Pump RP-3R(S)
Attachable suction pump for the GX-3R and GX-3R Pro — enables active sampling in confined spaces, tanks and hard-to-reach areas.
View productDownloads — Riken Keiki Parts Lists
Original Riken Keiki parts lists for our portable gas detectors. Files open in a new tab.
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