Riken Keiki GX-3R Pro 5 Gas Detector with CO₂ – Marine Confined Space Gas Monitor (CPD-W6X1HMB1-Y-00)

PLEASE NOTE THAT AVAILABILITY ON THIS UNIT IS CURRENTLY UP TO 5 MONTHS DUE TO HIGH DEMAND

The Riken Keiki GX-3R Pro is an advanced, ultra-compact 5 gas personal monitor designed for use in confined spaces, offshore environments, and marine operations.

As enclosed space safety guidance continues to evolve under the International Maritime Organization, there is increasing emphasis on accurate carbon dioxide (CO₂) measurement during pre-entry atmospheric testing. This compact, intrinsically safe gas detector provides reliable CO₂ monitoring alongside other critical gases, making it a future-ready solution for vessels and offshore installations.

Why CO₂ Detection Matters in Marine Environments

New and emerging guidance for enclosed space entry highlights the importance of monitoring carbon dioxide levels, particularly in oxygen-depleted or inert atmospheres.

Many traditional 4 gas detectors used on ships do not measure CO₂, creating a potential gap in safety procedures.

The GX-3R Pro helps address this by enabling:

• Accurate CO₂ gas detection (0–5% / 50,000 ppm range)
• Improved risk assessment before confined space entry
• Enhanced compliance with evolving maritime safety expectations
• Safer working conditions for crew in enclosed spaces

Marine-Ready Gas Detection Solution

This model is available with MED (Wheelmark) marine approval, making it suitable for use on vessels operating globally.

It is certified to key hazardous area standards including:

• ATEX Directive
• IECEx

This ensures suitability for offshore, marine, and industrial applications where safety is critical.

Key Features & Benefits

⚓ Compact & Lightweight Design

• One of the smallest and lightest 5 gas monitors available
• Approx. 120g, designed for all-day wear
• Fits easily in the breathing zone without interfering with work

📡 Bluetooth Connectivity

• Wireless connection via iOS & Android apps
• Enables real-time data access and monitoring
• Supports improved safety reporting and analysis

👤 Worker Protection Features

• Man-down alarm for lone worker safety
• Panic alarm functionality
• Audible, visual, and vibration alerts (95 dB buzzer)

🧠 Advanced Sensor Technology

• 4-sensor platform delivering 5 gas capability
• Includes infrared CO₂ sensor for reliable measurement
• Long-life sensors backed by a 3-year warranty

🔋 Long Battery Life

• Up to 40 hours continuous operation
• Fast charging capability (approx. 180 minutes)
• Ideal for offshore and extended use

💪 Built for Harsh Environments

• IP66/IP68 rated for water and dust resistance
• Drop-tested up to 7 metres
• Operating range: -40°C to +60°C

Gas Detection Capabilities

The GX-3R Pro can detect:

• Oxygen (O₂)
• Combustible gases (LEL)
• Carbon Monoxide (CO)
• Hydrogen Sulphide (H₂S)
• Carbon Dioxide (CO₂)
• Optional toxic gases:
  • Ammonia (NH₃)
  • Nitrogen Dioxide (NO₂)
  • Sulphur Dioxide (SO₂)
  • Hydrogen Cyanide (HCN)
  • Phosphine (PH₃)
  • Chlorine (Cl₂)

Data Logging & Alarm Features

• Configurable alarm levels for each gas
• Over-range and fault alarms
• Internal data logging:
  • Up to 3,600 events
  • Up to 300 hours of recording
• Alarm types:
  • Visual
  • Audible
  • Vibration

Applications

• Marine confined space entry
• Ship engine rooms
• Offshore platforms
• Tank cleaning and inspection
• Gas detection programmes
• Industrial safety monitoring
• Hazardous environments requiring CO₂ monitoring

Designed for Fleet Operations

The GX-3R Pro is ideal for integration into fleet-wide gas detection programmes, helping operators standardise equipment across vessels.

At IM-M, we support global fleets with:

• Equipment supply
• Calibration and servicing
• Instrument rotation programmes
• Technical support and compliance guidance

Optional Accessories

• Multi-unit charging stations
• Communication accessories
• Data transfer and management tools

Technical Specifications

• Detection: LEL, O₂, CO, H₂S, CO₂ + optional toxic gases
• Sampling: Diffusion
• Power: Rechargeable Ni-MH battery
• Charging time: Approx. 180 minutes
• Battery life: Up to 40 hours
• Weight: Approx. 120g
• Ingress protection: IP66 / IP68
• Certifications: ATEX, IECEx, MED (optional)

Riken Keiki GX-3R Pro Datasheet

Riken Keiki GX-3R Pro User Manual