Advanced multi gas detector for worker safety in hazardous environments.
ARA-X4 is a durable, high-performance multi gas detector designed to provide unrivaled protection in hazardous environments. With the ability to monitor up to four gases simultaneously, the ARA-X4 multi gas detector ensures real-time detection of hazardous gases, helping organizations comply with health and safety regulations while preventing accident and exposure risks.
The ARA-X4 multi gas detector is a rugged, 4-gas compliance instrument. Certified by ATEX and IECEx and featuring an IP67 ingress protection rating, ARA-X4 offers a reliable, cost-effective, and user-friendly solution for worker safety. Ideal for confined space entry and personal health protection, it provides real-time detection of O2, CO, H2S, HCN, O2 and LEL levels, ensuring compliance with safety regulations.
Features
- Multiple Sensor Options – Flexibility to choose O2 (leaded or lead-free),CO, H2S, LEL (Pellistor or IR),HCN and O2 sensors to suit specific application needs.
- Instrument Warranty – Reliable instrument performance backed by a 5-year warranty.
- Safe Mode – Displays a SAFE icon when no alarms are triggered, ensuring peace of mind for operators that they are protected.
- User-Friendly Design – green & red backlighting, along with a clear, easy navigable interface.
- Flip Screen– LCD screen features a ‘flip’ function to flip the screen based on instrument orientation, ensuring easy readings.
- Simple PC Software – Easy to navigate for streamlined data logging download and instrument configuration
- The ARA-X4 Multi Gas Detector is built for efficiency and user convenience. Its easily accessible filter allows for quick replacement without complex disassembly, minimising downtime and reducing the risk of water or dirt ingress – a major advantage over other models that require full unit disassembly.
- To meet diverse user needs, the ARA-X4 offers both leaded and lead-free oxygen sensors. The lead-free option provides a longer lifespan and a more environmentally friendly choice, while the leaded sensor offers a cost-effective alternative.
- For added flexibility, the configurable sensor setup enables trained personnel to adjust sensor configurations based on specific workplace hazards. This adaptability ensures that the ARA-X4 remains a versatile solution for a wide range of industrial environments.
Models
- AX4D-2312-00 : ARA-X4 Multigas Diffuse - O2 / CO / H2S / LEL (CAT).
- AX4D-2322-00 : ARA-X4 Multigas Diffuse - CO / H2S / O2 / LEL (IR).
Typical Industries & Applications
- Oil & Gas
- Petrochemical
- Pharmaceutical
- Maritime
- Utilities
- Wastewater
- Hazmat/First Response
- Manufacturing
What’s in the Box?
- ARA-X4 Multi Gas Detector
- Charger
- Sensor Filter
- Tubing
- Calibration Cap
- Documentation (Quick Start Guide, Calibration Certificate, Safety Information, Declaration of Conformity, ION Science: Who We Are)
926200 ARA-X Docking Station
(Option non requise pour le fonctionnement de l'appareil)
The ARA-X Docking Station streamlines bump testing and calibration for ARA-X4 Multi Gas Detectors, automatically logging serial numbers, test dates, and times for easy tracking and compliance.
Equipped with multiple gas inlet ports, it supports all sensor configurations. Designed for flexibility, it offers user-configurable firmware updates via USB and runs on an internal battery for fast, standalone deployment. Its compact, desk-mounted design ensures simple operation and quick turnaround.
*ARA-X Docking Station is sold separately

Technical Specifications
Gas Sensor Options
Electrochemical
- CO
- H2S
- Dual Tox (CO/H2S)
- O2(lead or lead-free options)
- SO2
- HCN
Flammable Sensors
- LEL Pellistor (CH4)
- LEL NDIR (CH4)
Event Log Storage
- 50 bump logs
- 50 calibration logs
- 50 event logs
- 60,000 data logs
Battery
- Li-ion battery, DC 3.7V, 2000mAh
Battery Life
- LEL Pellistor Model: 18 hours
- LEL IR model: 60 days*
Status indicator
Visual
- 6 red/green LED, plus 1 green LED (confidence)
Audible
- 95 dB @ 30cm
Vibrating Alarm
- Vibrator (temperatures greater than -10oC)
Display
- LCD: 45 x 45 mm, internal backlight (red and green),FTSN, COG 128 x 128 graphic LCD, FPC
Environmental specification
- Operational temperature: -20 C to +55 C, 5 ~ 95% RH
Ingress Protection
- IP67
Communication
- IR Communication to ARA-X4 PC software via IR link
Weight & Dimensions
- < 300g
- 67 x 140 x 34 mm
Certification
- ATEX: II 2G Ex db ib IIC T4 Gb
- IECEx: Ex db ib IIC T4 Gb
- North American Certification – PENDING
Warranty
- 5 years**
* Based on 11 hours of use per day
** Excluding consumables and sensors. Please refer to the ION Science warranty statement for full details
Sensor Specifications
Sensor | Range | Resolution | Low Alarm | High Alarm | Warranty | Expected Lifetime |
O2 (leaded) | O2: 0 to 25% | 0.1% | 19.5% | 23.5% | 2 years | > 24 months in air |
O2 (lead-free) | O2: 0 to 25% | 0.1% | 19.5% | 23.5% | 3 years | > 60 months in air |
CO** | CO: 0 to 500 ppm | 1 ppm | 35 ppm | 200 ppm | 2 years | > 24 months in air |
H2S** | H2S: 0 to 100 ppm | 0.1 ppm | 10 ppm | 15 ppm | 2 years | > 24 months in air |
CO/H2S Dual | CO: 0 to 500 ppm H2S: 0 to 100 ppm | CO: 1 ppm H2S: 0.1 ppm | CO: 35 ppm H2S: 10 ppm | CO: 200 ppm H2S: 15 ppm | 2 years | > 24 months in air |
LEL (Pellistor) | LEL: 0 to 100% LEL | 0.1% | 10% | 20% | 1 year | > 24 months in air |
LEL (IR) | LEL: 0 to 100% LEL | 0.1% | 10% | 20% | 3 years | > 60 months in air |
HCN | HCN: 0 to 30 ppm | 0.1 ppm | 4.5 ppm | 10 ppm | 1 year | > 24 months in air |
SO2 | SO2: 0 to 20 ppm | 0.1 ppm | 5 ppm | 10 ppm | 1 year | > 24 months in air |
ARA-X DOCKING STATION
Dimensions | 188 x 185 x 200 mm |
Weight | 2.4kg |
Operating temperature | 5°C ~ 40°C(+41°F to +104°F) |
Storage temperature | -10°C ~ 60°C(+14°F to +140°F) |
Data Storage | External USB 2.0 Memory Stick (32GB) Time & date stamp |
Compatible Devices | ARA-X4 |
Battery | Lithium-lon Battery Pack, 7.4V, 2,750mAh, 20.08Wh |
Battery Charging Time | Up to 4 hours |
Tests | Bump, Calibration, Data Transfer, Audible Alarm, Memory Space Remaining |
Power Supply | Supply Voltage:
-Input:110-240V a.c, 50/60Hz Max 0.5A -Output:12V d.c, 1.5A Power Rating -12V d.c, 1.5A(Adapter) -7.4V d.c, 2,750mAh(Internal Battery) |
Pump | 2x pumps(built in),150-600ml/minute |
Bas Connection | 5 Tube coupler - Hose Barb 1/8" - 1 exhaust outlet - 1 purge air inlet - 3 test gas connection |
Display | 4 functional and 10 indication LEDs - Red and green LEDs (2 colors) Power LED - Blue/White - Blue: battery powered - White: external powered |
Communication | 1 USB port - USB 2.0 1 RJ45 - Ethernet 10/100 |
Test Unit Recognition | IrDA communication |
Approvals | CE |
Warranty | Standard: 12 months Extended: 24 months |
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