Gases / Toxic Gases Precision Monitoring Equipment
The GrayWolf AdvancedSense XM / DirectSense XM System is a regulatory-grade environmental monitoring platform designed for real-time measurement of air quality, gaseous pollutants, and key environmental parameters.
The system integrates the AdvancedSense XM handheld meter with DirectSense XM smart probes, enabling simultaneous multi-parameter monitoring through a modular, plug-and-play sensor architecture.
It supports connection of multiple probes, each capable of hosting up to eight sensors, allowing high-resolution, real-time measurement across a broad range of parameters, including VOCs, CO₂, CO, O₃, NO₂, SO₂, H₂S, temperature, humidity, airflow, and related variables.
The platform is suitable for both spot measurements and continuous monitoring, supporting applications in environmental assessments, industrial hygiene, and research.
The GrayWolf AdvancedSense XM / DirectSense XM System delivers high-precision, real-time air quality data through a modular multi-sensor configuration. Its scalable architecture supports the generation of accurate and defensible datasets for ESIA, occupational exposure assessment, and regulatory compliance aligned with international best practice.
Key Highlights
- Multi-parameter capability: Measures 25+ gases and environmental variables using interchangeable sensors, including:
- PID (VOCs/TVOCs – low and high range)
- NDIR (CO₂)
- Electrochemical sensors (CO, O₃, NO₂, NH₃, H₂S, SO₂, etc.)
- Modular architecture: Supports up to three probes with up to eight sensors each (up to ~30 parameters simultaneously)
- Real-time monitoring and data logging: Continuous measurement with onboard memory and optional cloud synchronisation
- Wireless connectivity: Bluetooth (BLE) and Wi-Fi for remote monitoring and data transfer
- User interface: Colour touchscreen with intuitive navigation and field data annotation capability
- Integrated environmental sensing: Temperature, humidity, pressure, airflow, and dew point
- Software integration: Compatible with GrayWolfLive® and reporting tools for data analysis
- Flexible deployment: Handheld, tripod-mounted, or semi-fixed installations
Typical Applications
- Environmental and Social Impact Assessments (ESIA)
- Ambient air quality monitoring (urban, roadside, industrial)
- Occupational hygiene and exposure assessment
- Indoor Air Quality (IAQ) investigations
- HVAC testing and ventilation assessment
- Industrial emissions monitoring and process control
- Environmental research programmes
Industries and Use Cases
- Oil & Gas / Refineries – gas exposure monitoring
- Environmental Consulting – ESIA/ESMP baseline and compliance studies
- Construction & Infrastructure – dust and gas monitoring
- Manufacturing – workplace air quality and emissions
- Urban Planning – air quality monitoring programmes
- Healthcare & Commercial Buildings – IAQ assessments
- Academia & Research – environmental monitoring
The Sensors Suite and Specifications
| Parameter / Gas | Sensor Type | Range | Resolution | Accuracy | Typical Use |
|---|---|---|---|---|---|
| TVOCs (PID) | Photoionization Detector (PID) | 0–20 ppm / 0–2000 ppm (multi-range) | 0.001 ppm | ±5% | IAQ, industrial emissions |
| CO₂ | NDIR | 0–5,000 ppm / up to 50,000 ppm | 1 ppm | ±3% | Ventilation, IAQ |
| CO | Electrochemical (EC) | 0–500 ppm | 0.1 ppm | ±2–5% | Combustion exposure |
| O₃ | Electrochemical | 0–20 ppm | 0.01 ppm | ±2% | Ambient air, IAQ |
| NO₂ | Electrochemical | 0–20 ppm | 0.01 ppm | ±2% | Traffic, combustion |
| NO | Electrochemical | 0–250 ppm | 0.1 ppm | ±2–5% | Industrial emissions |
| SO₂ | Electrochemical | 0–20 ppm | 0.01 ppm | ±2% | Power plants, refineries |
| H₂S | Electrochemical | 0–100 ppm | 0.01 ppm | ±2% | Oil & gas, wastewater |
| NH3 | Electrochemical | 0–100 ppm | 0.1 ppm | ±2–5% | Agriculture, waste |
| O₃ | Electrochemical | 0–25% vol | 0.1% | ±1% | Confined space safety |
| HCHO (Formaldehyde) | Electrochemical / colorimetric | 0–10 ppm | 0.001 ppm | ±2% | IAQ, building studies |
| Cl₂ | Electrochemical | 0–20 ppm | 0.01 ppm | ±2% | Water treatment |
| ClO₂ | Electrochemical | 0–1 ppm | 0.001 ppm | ±2% | Disinfection monitoring |
| HCl | Electrochemical | 0–30 ppm | 0.01 ppm | ±2–5% | Industrial processes |
| HF | Electrochemical | 0–10 ppm | 0.01 ppm | ±2–5% | Chemical plants |
| HCN | Electrochemical | 0–50 ppm | 0.1 ppm | ±2–5% | Industrial safety |
| H₂ | Electrochemical | 0–2000 ppm | 1 ppm | ±2–5% | Process safety |
| PH₃ (Phosphine) | Electrochemical | 0–20 ppm | 0.01 ppm | ±2–5% | Fumigation |
| C₂H4O (Ethylene Oxide) | Electrochemical | 0–100 ppm | 0.01 ppm | ±2–5% | Sterilization facilities |
| AsH₃ (Arsine) | Electrochemical | 0–1 ppm | 0.001 ppm | ±2–5% | Semiconductor industry |
| SiH₄ (Silane) | Electrochemical | 0–50 ppm | 0.01 ppm | ±2–5% | Electronics manufacturing |
| B₂H6 (Diborane) | Electrochemical | 0–1 ppm | 0.001 ppm | ±2–5% | Specialty gas monitoring |
| COCl₂ (Phosgene) | Electrochemical | 0–1 ppm | 0.001 ppm | ±2–5% | Chemical hazard monitoring |
| F₂ (Fluorine) | Electrochemical | 0–10 ppm | 0.01 ppm | ±2–5% | Industrial gas safety |
Integrated Environmental and Physical Sensors Specifications
| Parameter | Sensor Type | Typical Range | Application |
|---|---|---|---|
| Temperature | Thermistor | -20 to 80°C | IAQ, process |
| Relative Humidity | Capacitive | 0–100% RH | IAQ, comfort |
| Barometric Pressure | MEMS | 300–1100 hPa | Compensation |
| Air Velocity | Hot-wire / Pitot | 0–20 m/s | HVAC |
| Differential Pressure | MEMS | ±5000 Pa | Ventilation |
| Dew Point | Calculated | — | Moisture studies |
Do you have gas sensing equipment available for rental?
Yes. We provide GrayWolf AdvancedSense XM / DirectSense XM systems and compatible configurations suitable for environmental and occupational monitoring.
What gas monitoring meter/ configurations do you offer?
We provide AdvancedSense XM with DirectSense XM (8 probe configurations)
What parameters can your air quality systems measure?
Depending on configuration, our systems can measure:
- Gases (ppm, % volume, mg/m³)
- Oxygen
- Combustible gases
- Toxic gases (e.g., CO, H₂S, NO₂, SO₂, VOCs, etc)
- Temperature, humidity, pressure
- Airflow
Is your equipment suitable for ESIA, audits and regulatory compliance (NESREA/FMEnv)?
Yes, our equipment is suitable for:
- Environmental audits
- ESIA baseline studies
- Compliance monitoring
Aligned with NESREA/FMEnv expectations and relevant international standards (instrument/config dependent).
Can particulate monitoring be integrated with gas monitoring?
Yes. We can support combined gas + particulate monitoring for a complete air quality assessment.
Can your air quality data be used for modelling studies?
Yes. Outputs can be used for:
- Air dispersion modelling
- ESIA impact assessment
- Baseline and compliance studies
Can your systems support continuous/remote monitoring?
Yes, subject to configuration. Options include:
- Long-duration time-history logging
- Tripod-based unattended deployment
- Battery-powered field operation
EcoPro can also provide deployment support, periodic data retrieval, processing, and reporting.
Do you provide fully integrated remote monitoring solutions?
Yes. For large/long-term scopes we can support:
- Multi-location deployments
- Centralised data collection
- Project-specific reporting dashboards (where required)
How accurate are your sensors at low concentrations?
Our sensors support:
- Low detection limits
- High resolution measurements
- Stable low-level performance
(Accuracy depends on sensor type/configuration and calibration condition.)
Do you provide calibration support?
Yes. We support:
- Calibration readiness
- Compatibility with standard calibration gases
- Good measurement practice guidance