Description
RKI Instruments GX‑3R Pro 5‑Gas Detector Bluetooth Li‑Ion + Charger
The RKI Instruments GX‑3R Pro is a compact multi-gas detector designed for personal gas monitoring in confined spaces and hazardous work environments. Recognised as one of the world’s smallest and lightest 5‑gas monitors, it simultaneously measures combustible gases (LEL), oxygen (O₂), carbon monoxide (CO), hydrogen sulfide (H₂S), and supports a fifth toxic or infrared sensor channel. This 72‑PAX‑C configuration includes a rechargeable lithium-ion battery pack and a 100–240 VAC charger.
Key Features
- ✅ Simultaneous monitoring of LEL, O₂, CO and H₂S with support for a fifth toxic or infrared gas sensor
- ✅ Bluetooth wireless communication with iOS and Android mobile applications
- ✅ Rechargeable lithium-ion battery with up to 25 hours of operation and approximately 3-hour recharge time
- ✅ Man-down alarm and panic alarm functionality
- ✅ Large auto-backlit display with automatic screen rotation
- ✅ Three user-adjustable alarm levels plus STEL, TWA and over-range alarms
- ✅ Audible, visual and vibration alarms
- ✅ Field-replaceable sensors and filters
- ✅ Water and dust resistant IP66/IP68 construction
- ✅ Compact size and lightweight design suitable for continuous personal monitoring
- ✅ Non-compliance indicator for overdue bump tests, calibration requirements and alarm events
Benefits
- 🛡️ Enhances worker safety in confined spaces and hazardous locations
- 📱 Enables wireless monitoring and alarm notifications through Bluetooth connectivity
- ⚡ Long battery runtime supports full-shift operation
- 🔄 Flexible sensor configuration allows adaptation to different gas hazards
- 👷 Comfortable to wear due to its compact size and low weight
- 💧 Suitable for demanding industrial environments with IP66/IP68 protection
- 🔔 Multiple alarm methods improve hazard awareness in noisy workplaces
Specifications
| Brand | RKI Instruments |
| Model | GX‑3R Pro |
| Product Type | Portable 5‑Gas Detector |
| Part Number | 72‑PAX‑C |
| Colour | Red and Black |
| Gas Detection | LEL, O₂, CO, H₂S plus one toxic or infrared gas sensor channel |
| Optional Fifth Sensors | HCN, NH₃, NO₂, PH₃, SO₂ and CO₂ (configuration dependent) |
| Sampling Method | Diffusion |
| Display | Large full-dot LCD, auto-backlit with auto-rotation |
| Connectivity | Bluetooth |
| Battery Type | Rechargeable Lithium-Ion Battery Pack |
| Battery Runtime | Up to 25 hours |
| Charging Time | Approximately 3 hours |
| Dimensions | 73 × 65 × 26 mm (2.9 × 2.6 × 1.06 in) |
| Weight | 130 g (4.58 oz) |
| Protection Rating | IP66/IP68 |
| Alarm Types | Audible, visual, vibration, panic alarm and man-down alarm |
| Alarm Levels | Three user-adjustable alarm levels, STEL, TWA and over-range alarms |
| Operating Temperature | -20°C to +50°C continuous environment |
| Operating Humidity | 10% to 90% RH non-condensing |
| Included in Pack | GX‑3R Pro detector, Li‑Ion battery pack and 100–240 VAC charger |
| Warranty | 3 Years |
How to Use
- Fully charge the detector using the supplied 100–240 VAC charger.
- Turn on the instrument and allow the sensors to initialize.
- Verify calibration and bump-test status before use.
- Wear the detector within the breathing zone using the supplied clip.
- Monitor gas readings continuously during work activities.
- Follow site safety procedures immediately if an alarm activates.
- Recharge and maintain the detector according to manufacturer recommendations.
⚠️ The GX‑3R Pro should be bump tested and calibrated as required; the built-in non-compliance indicator alerts users when calibration or bump testing is overdue.
⭐⭐⭐⭐⭐ “Extremely compact and comfortable to wear all day. Bluetooth monitoring is a great feature.” — Andre S.
⭐⭐⭐⭐⭐ “Reliable readings and excellent battery life for confined space work.” — Megan K.
⭐⭐⭐⭐⭐ “The man-down alarm and rugged construction make this an outstanding safety device.” — Pieter M.
FAQs
Q: What gases does this configuration monitor?
A: The 72‑PAX‑C configuration monitors LEL combustible gases, oxygen, carbon monoxide and hydrogen sulfide, while the GX‑3R Pro platform supports an additional toxic or infrared sensor channel.
Q: Does the detector support Bluetooth?
A: Yes. Bluetooth communication allows connection with compatible iOS and Android mobile applications.
Q: How long does the battery last?
A: The rechargeable lithium-ion battery can operate for up to 25 hours depending on configuration and usage.
Q: How long does charging take?
A: A full recharge typically takes approximately 3 hours.
Q: Is this detector suitable for confined space entry?
A: Yes. The GX‑3R Pro is designed for confined space monitoring and industrial personal gas detection applications.
Q: What alarm types are included?
A: The detector provides audible, visual and vibration alarms, along with panic alarm and man-down alarm functionality.
Q: Can sensors be replaced?
A: Yes. The GX‑3R Pro features field-replaceable sensors and filters.
Q: Is the instrument water resistant?
A: Yes. It carries IP66/IP68 ingress protection ratings for dust and water resistance.
Industries & Applications
- ⛽ Oil and Gas
- 🛢️ Petrochemical Facilities
- 🏗️ Construction Sites
- 🚰 Water and Wastewater Treatment
- ⚙️ Industrial Manufacturing
- ⚡ Utilities
- 🚒 Emergency Response Services
- ⛏️ Mining Operations
- 🚢 Marine and Maritime Operations
- 🔒 Confined Space Entry
- 🏭 Chemical Processing Facilities
Compliance & Certifications
- ✅ IP66/IP68 Water and Dust Protection
- ✅ ATEX Approved
- ✅ IECEx Approved
- ✅ CE Marking
- ✅ RoHS Compliance
- ✅ EN 60079-29-1
- ✅ EN 50104
Equip your workforce with a proven portable gas detection solution that combines advanced sensing technology, Bluetooth connectivity, rugged environmental protection and extended battery performance in an exceptionally compact design. The GX‑3R Pro delivers dependable personal monitoring wherever worker safety is critical.
