GX-3R Series
GX-3R Series
Attach to your shirt collar or anywhere within the breathing zone.
Equipped with our new sensor which enables simultaneous measurement of 2 different gases, the GX-3R Series is one of the world's smallest, most-lightweight 4-gas monitors. Can be attached to the collar or anywhere within the breathing zone for enhanced safety. Its unparalleled robust design eliminates the need to worry should it fall or get wet - you can rest assured it will continue to work just fine.
Eliminates the need for manual maintenance and inspection work such as bump tests, span adjustments or operation checks. Easily automate these maintenance tasks with the SDM-3R docking station designed specifically for GX-3R Series products. Enjoy more reliable protection for an improved safety profile, as well as streamlined, efficient maintenance, and say goodbye to unexpected downtime due to gas monitor malfunctions with our SDM-3R docking station.
Use together with our RP-3R(S) Series unit pump designed specifically for the GX-3R Series to use your diffusion-type device as a suction-type device. Two adjustable suction settings allow for use in a wide range of settings.
Supports 16 languages
Connectivity with external devices
The GX-3R Pro can be connected to various external devices. For example, the GX-3R Pro supplied by our subsidiary RKI Instruments, is compatible with the Guardhat Platform.
Robustness
The GX-3R series is designed for use in harsh environments. It operates reliably within a temperature range of -40 °C to +60 °C (without sudden changes) and has an IP rating equivalent to IP66/68. In addition, it is resistant to drops from heights of up to 7 meters.
3 step alarmpoints
Warranty for 3 years
GX-3R and GX-3R PRO mounted with the new R sensor series, which have dramatically improved the performance from the previous sensors.
The sensor was also developed in-house, the GX-3R and GX-3R Pro were designed with an intimate understanding of the sensor characteristics. This enabled us to succeed in developing a compact, high-performance sensor.
Hydrogen resistance
Significantly reduces hydrogen (H₂) interference, enabling precise carbon monoxide (CO) detection even in challenging environments where CO and H₂ coexist — for example, in steel manufacturing plants.
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| Product Name | GX-3R | GX-3R Pro | ||
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| Product Subtitle | Portable Gas Monitor | Portable Gas Monitor | ||
| Product Type | Portable Gas Detector | Portable Gas Detector | ||
| Industries | Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel | Infrastructure, Sustainable Energy, Marine, Oil & Gas, Steel | ||
| Use Purpose | Safety management | Safety management | ||
| Single/Multi | Multi | Multi | ||
| Certification | Japanese Certification, IECEx, ATEX, China Ex (China), MED (EU Marine Equipment Directive), EN 60079-29-1, EN 50104, EN 45544, JIS, JG (MLIT) Type Approval, etc.(dependsonthespecification) | Japanese Certification, IECEx, ATEX, China Ex (China), MED (EU Marine Equipment Directive), EN 60079-29-1, EN 50104, EN 45544, JIS, JG (MLIT) Type Approval, etc.(dependsonthespecification) | ||
| Detectable Gas | Combustible, O2, CO, H2S | Combustible, O2, CO, H2S(Up to 4 can be selected from red text), HCN, NH3, NO2, PH3, SO2, CO2 vol%, CO2 ppm（1 can be selected from blue text） | ||
| Detection Range | 0 to 100 %LEL (HC/CH4) 0 to 40 vol% (O2) 0 to 2000 ppm (CO) 0 to 200 ppm (H2S) |
Depend on target gas. | ||
| Principle of Detection |
New Ceramic Catalytic Method, Potentiostatic Electrolysis Method | New Ceramic Catalytic Method, Non-Dispersive Infrared Method, Potentiostatic Electrolysis Method | ||
| Sampling Method | Diffusion, Clip-on sampling pump (optional) | Diffusion, Clip-on sampling pump (optional) | ||
| Ingress Proof Rating |
IP66/68 | IP66/68 | ||
| Dimensions | Approx. 58 (W) ×65 (H) × 26 (D) mm | Approx. 73 (W) × 65 (H) × 26 (D) mm [Rechargeable battery] Approx. 73 (W) × 65 (H) × 34 (D) mm [Alkaline battery] |
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| Weight | Approx. 100 g | Approx. 120 g [Rechargeable battery] Approx. 140 g [Alkaline battery] |
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| Remarks | - | Bluetooth, Multi language, Mandown alarm, Panic alarm | ||
| Power Source | Rechargeble lithium-ion battery unit | Rechargeble lithium-ion battery unit, drycell battery unit | ||
| Continuous Operation |
Approx. 40 hours after full charge (with long battery mode) | Approx. 40 hours (with long battery mode) *Depends on sensor type | ||
| Operating Temperature Range |
-40 ℃ to +60 ℃ (no sudden changes) | -40 ℃ to +60 ℃ (no sudden changes) | ||
| Operating Humidity Range |
0 to 95 %RH (no condensation) | 0 to 95 %RH (no condensation) | ||
| Applicable Instruments |
Why Customers Choose Us
Since our beginnings in 1939, Riken Keiki has continued to lead the way in gas detection technology, laying the foundations that support our modern society.
Discover why customers continue to choose Riken Keiki, the global standard in gas detection equipment.
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