Professional multi-gas detector with XCell sensors for LEL, O2, CO, and H2S detection. Features 24-hour battery, datalogging, MotionAlert, InstantAlert, and IP68 rating. Rugged charcoal design survives 25ft drops. Ideal for fire service, mining, oil & gas industries.
The MSA Altair 4XR is a professional-grade multi-gas detector designed for reliable, real-time detection of combustible gases, oxygen, carbon monoxide, and hydrogen sulphide levels using advanced XCell sensors. This rugged and dependable instrument features charcoal housing and is engineered to withstand demanding industrial environments while providing accurate measurements across four critical gas parameters. The detector is suitable for use across multiple industries including fire service, contracting, industrial operations, mining, oil and gas, and utilities sectors.
This advanced multi-gas detector incorporates sophisticated safety features including datalogging capabilities that can record more than 500 event logs, MotionAlert functionality to notify others when the user becomes immobile, and InstantAlert feature to warn of potentially dangerous situations. The device has been rigorously tested to survive 25 drops from 4 feet and an incidental 25-foot drop onto concrete, with IP68 rating ensuring complete protection against dust and water ingress up to 2 meters for at least 1 hour. The compliance feature allows quick visual verification of bump testing status.
The MSA Altair 4XR comes complete with a rechargeable Li-polymer battery offering 24-hour runtime with less than 4-hour charge time, a charger, calibration cap, and short tubing. Compatible with the MSA Galaxy GX2 stand and upgradeable with the MSA ALTAIR Pump Probe for pumped applications, this detector represents the latest evolution from the MSA Altair 4X with enhanced reliability and performance. Every unit is manufacturer-calibrated and then recalibrated by the in-house team prior to dispatch, ensuring immediate operational readiness.
Key Features
- Detects four critical gases: LEL (Combustible), O2 (Oxygen), CO (Carbon Monoxide), and H2S (Hydrogen Sulphide)
- Datalogging function records more than 500 event logs for comprehensive safety tracking
- MotionAlert feature notifies others when user becomes immobile for enhanced safety
- InstantAlert feature activates to warn of potentially dangerous gas situations
- Rugged design tested to survive 25 drops from 4 feet and 25-foot drop onto concrete
- IP68 rating provides complete protection against dust and water ingress at 2 meters for 1 hour minimum
- Rechargeable Li-polymer battery with 24-hour runtime and less than 4-hour charge time
- Compliance feature shows bump test status at a glance
- Compatible with MSA Galaxy GX2 stand for convenient mounting
- Upgradeable with MSA ALTAIR Pump Probe for pumped gas detection applications
Technical Specifications
| Specification |
Value |
| Product Code | 10211185 |
| Brand | MSA |
| Model | Altair 4XR |
| Housing Color | Charcoal |
| Sensor Type | XCell Sensors |
| Dimensions | 4.4 x 3.0 x 1.4 inches (11 x 7.6 x 3.5 cm) |
| Weight | 8 oz (228g) |
| LEL Measurement Range | 0-100% |
| O2 Measurement Range | 0-30% |
| CO Measurement Range | 0-1999 ppm |
| H2S Measurement Range | 0-200 ppm |
| LEL Resolution | 1% |
| O2 Resolution | 0.1% |
| CO Resolution | 1 ppm |
| H2S Resolution | 1 ppm |
| Battery Type | Rechargeable Li-polymer |
| Battery Runtime | 24 hours |
| Charge Time | Less than 4 hours |
| Operating Temperature Range | -40°F to +140°F (-40°C to +60°C) |
| Relative Humidity (Intermittent) | 5% - 95% |
| Relative Humidity (Non-condensing) | 15% - 90% |
| IP Rating | IP68 |
| Drop Test Rating | Survives 25 drops from 4 feet (1.2m) and 25-foot (7.5m) drop onto concrete |
| Datalogging Capacity | More than 500 event logs |
| Warranty | 4 years instrument and sensor warranty |
| ATEX Certification | Directive 2014/34/EU (ATEX): II 1G Ex ia da IIC T4 Ga, –40°C to +60°C, IP68 |
| CE Certification | CE 0080 |
| EMC Certification | EN50270 Type 2, EN61000-6-3 |
| North America Certification | Class I, Division 1, Groups A, B, C & D; Class II, Division 1, Groups E, F & G; Class III, Division 1 |
| CSA Certification | CAN/CSA C22.2 No. 152, C22.2 No. 157 |
| IECEx Certification | Ex ia da IIC T4 Ga, –40°C to +60°C, IP68 |
| Included Accessories | Charger, calibration cap, short piece of tubing |
| Compatible Accessories | MSA Galaxy GX2 stand, MSA ALTAIR Pump Probe |
| Calibration Status | Factory calibrated and recalibrated by in-house team before dispatch |
| Predecessor Model | Supersedes MSA Altair 4X (pn: 10110715) |
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