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Riken Keiki GX-3R Portable Multi Gas Detector
The Riken Keiki GX-3R is an ultra-compact portable 4-gas detector designed for reliable monitoring of O₂, CO, H₂S, and combustible gases in marine, offshore, industrial, and confined-space applications.
The Riken Keiki GX-3R Portable Multi Gas Detector is one of the world's smallest and lightest 4-gas detectors, engineered for continuous personal gas monitoring in marine, offshore, oil & gas, industrial, and confined-space applications. Despite weighing only approximately 100 grams, the GX-3R simultaneously detects Oxygen (O₂), Carbon Monoxide (CO), Hydrogen Sulphide (H₂S), and Combustible Gases (LEL). Featuring an ultra-compact design, IP66/IP68 protection, long battery life, intrinsically safe certification, and optional clip-on sampling pump, the GX-3R delivers exceptional portability without compromising safety or performance.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Riken Keiki GX-3R Portable Multi Gas Detector |
| Brand | Riken Keiki |
| Model | GX-3R |
| Product Type | Portable Multi Gas Detector |
| Gas Detection Capacity | Simultaneous detection of 4 gases |
| Standard Gas Configuration | Combustible Gas (LEL), Oxygen (O₂), Carbon Monoxide (CO), Hydrogen Sulfide (H₂S) |
| Sampling Method | Diffusion type (optional clip-on sampling pump available) |
| Detection Principle | New Ceramic Catalytic Method (LEL), Potentiostatic Electrolysis Method (CO/H₂S), Electrochemical Method (O₂) |
| Sensor Configuration | Micro sensor technology for compact design |
| Display | Full dot LCD display with auto backlight and auto rotation |
| Operation | Simple 2-button operation |
| Gas Display | Simultaneous display of detected gas concentrations |
| Alarm Types | Gas alarm and fault alarm |
| Alarm Indication | Flashing LEDs, buzzer, vibration alarm, flashing gas value |
| Alarm Sound Level | Approx. 95 dB at 30 cm |
| Alarm Functions | Low Alarm, High Alarm, Over Range Alarm, TWA, STEL, Sensor Error, Battery Alarm |
| Measurement Range – Combustible Gas (LEL) | 0–100% LEL |
| Measurement Range – Oxygen (O₂) | 0–40.0% Vol |
| Measurement Range – Carbon Monoxide (CO) | 0–2,000 ppm |
| Measurement Range – Hydrogen Sulfide (H₂S) | 0–200 ppm |
| Resolution – LEL | 1% LEL |
| Resolution – O₂ | 0.1% Vol |
| Resolution – CO | 1 ppm |
| Resolution – H₂S | 0.1 ppm |
| Response Time (T90) | Within 30 seconds |
| Calibration | Fresh air calibration and span calibration supported |
| Data Logging | User ID, station ID, calibration history, bump test history, alarm events, alarm trends |
| Bluetooth Communication | Available with GX-3R Pro version for smartphone communication |
| Battery Type | Rechargeable Lithium-ion battery unit |
| Battery Runtime | Approx. 40 hours after full charge (Long Battery Mode) |
| Charging Time | Approx. 3 hours |
| Operating Temperature | -40°C to +60°C (no sudden temperature changes) |
| Operating Humidity | 0–95% RH (non-condensing) |
| Protection Rating | IP66/IP68 |
| Drop Resistance | Approx. 23 ft (7 m) drop resistance |
| Explosion Protection | Intrinsically safe construction |
| IECEx Certification | Ex da ia IIC T4 Ga / Ex da ia I Ma (with combustible gas sensor) |
| ATEX Certification | II 1G Ex da ia IIC T4 Ga / I M1 Ex da ia I Ma |
| Other Certifications | Japan Ex, ATEX, IECEx, China Ex, Brazil Ex, MED, EN 60079-29-1, EN 50104, JIS, JG (depending on configuration) |
| Dimensions | Approx. 58 (W) × 65 (H) × 26 (D) mm |
| Weight | Approx. 100 g |
| Housing Material | Rugged explosion-proof and dust/water-resistant enclosure |
| Applications | Confined Space Entry, Oil & Gas, Petrochemical, Marine, Mining, Steel Industry, Utilities, Industrial Safety |
Frequently Asked Questions
What is the standard delivery lead time for Riken Keiki GX-3R Portable Multi Gas Detector?
For standard stocked units, we provide same-day or next-day launch delivery to Singapore anchorages, Jurong port, and shipyards. For international vessels, we dispatch worldwide via DHL/FedEx Express air freight with 2 to 4 business days delivery.
Does this equipment include calibration certificates?
Yes. All portable and fixed detectors, UTI meters, and monitoring instruments supplied or calibrated by Ship Care Service include manufacturer inspection reports and traceable international calibration test certificates.
Are genuine spare parts and replacement sensors available for this model?
Yes, we maintain an extensive inventory of original manufacturer sensors, PCB motherboards, sampling pumps, filters, and sealing kits specifically for Riken Keiki.
How can I request a commercial quotation?
Simply fill out the Request a Quote form on the right or click "Chat on WhatsApp". Our marine sales engineering desk provides firm commercial quotes with lead times within 2 to 4 hours.
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