Graywolf WolfPACK Modular Area Monitoring Instrument

Overview

The Graywolf WolfPACK Modular Area Monitoring Instrument is a field-deployable, PC-based environmental monitoring platform engineered for real-time, multi-parameter assessment of indoor air quality (IAQ) and ambient environmental conditions. Built around an embedded Windows CE computing module, the WolfPACK executes Graywolf’s proprietary WolfSense2009 application software—designed to acquire, display, log, and export time-synchronized sensor data with traceable timestamps. Unlike fixed-station analyzers, the WolfPACK operates as a mobile or semi-permanent area monitor, supporting both continuous zone-level surveillance and targeted spot-checking across industrial hygiene, building commissioning, remediation verification, and environmental compliance workflows. Its core architecture follows a modular sensor-hub paradigm: the main unit serves as a central acquisition engine, interfacing with up to 20 plug-and-play sensors simultaneously—including direct-connect DirectSense probes and third-party analog/digital inputs via optional interface modules. This design enables flexible configuration across diverse monitoring objectives without hardware replacement.

Key Features

• Modular sensor architecture supporting up to 20 concurrent measurement channels in a single acquisition session
• Integrated Windows CE embedded computer running WolfSense2009 software for real-time visualization, on-device logging (SD card), and configurable alarm thresholds
• Compatibility with Graywolf DirectSense probe series—including CO₂, VOC, formaldehyde, PM₂.₅/PM₁₀, temperature, relative humidity, differential pressure, barometric pressure, and airflow velocity sensors
• Optional automatic zero-point calibration for differential pressure transducers and integrated atmospheric pressure sensing for altitude- and weather-corrected IAQ calculations
• Expandable via three DirectSense probe slots; each probe accommodates up to six co-located sensor elements (e.g., a single particle probe may integrate optical particle counter, temperature, RH, and barometric pressure)
• Field annotation capability: users may attach text notes, voice memos, and timestamped digital images directly to measurement records
• Built-in video-assisted setup guidance and context-sensitive help accessible during operation

Sample Compatibility & Compliance

The WolfPACK is intended for gaseous, particulate, and physical parameter sampling in non-explosive, indoor and sheltered outdoor environments. It supports measurement protocols aligned with ASHRAE Standard 62.1 (Ventilation for Acceptable Indoor Air Quality), ISO 16000 series (Indoor Air), and OSHA Technical Manual Chapter 2 (Indoor Air Quality). Sensor outputs comply with NIST-traceable calibration practices where applicable, and data logs maintain integrity through sequential file naming, UTC timestamping, and immutable metadata embedding (sensor ID, range, units, firmware version). While not certified for Class I Div 1 hazardous locations, the system meets UL 61010-1 safety requirements for laboratory and industrial field instrumentation. For regulated environments, WolfSense2009 supports user-defined audit trails and export formats compatible with LIMS integration (CSV, XML, PDF reports).

Software & Data Management

WolfSense2009 provides a deterministic, deterministic acquisition framework with configurable sampling intervals (1 second to 60 minutes), programmable start/stop triggers, and real-time statistical overlays (min/max/avg/std dev per channel). All raw data is stored locally on removable SD memory with cyclic overwrite protection. Post-acquisition, datasets export to industry-standard formats including CSV (for Excel and statistical packages), XML (for interoperability with enterprise EHS platforms), and PDF summary reports with embedded graphs and annotations. The software supports FDA 21 CFR Part 11–compliant configurations when deployed with external authentication servers and electronic signature modules—enabling use in GLP/GMP-aligned environmental validation studies. No cloud dependency is required; all processing occurs on-device, ensuring data sovereignty and operational continuity in low-connectivity field settings.

Applications

• Real-time IAQ mapping during HVAC commissioning, retrofit validation, and post-remediation clearance testing
• Occupational exposure assessment for volatile organic compounds (VOCs), carbon dioxide, and respirable particles in manufacturing, laboratories, and healthcare facilities
• Environmental chamber monitoring for material emission testing (e.g., ASTM D5116, ISO 16000-9)
• Baseline characterization and trend analysis for LEED IEQ credit documentation
• Mobile surveying of multiple zones using the AdvancedSense30 handheld companion unit—enabling synchronized multi-point correlation studies
• Long-term unattended monitoring when paired with external power and environmental enclosures

FAQ

What sensor types are natively supported without additional interface hardware?

DirectSense probes—including CO₂ (NDIR), VOC (PID), formaldehyde (electrochemical), particulate (laser scattering), differential pressure (capacitive), barometric pressure (piezoresistive), temperature/humidity (capacitive polymer), and airflow (thermal anemometer)—connect directly to the WolfPACK’s probe slots.

Can WolfSense2009 data be imported into third-party analytics platforms?

Yes. Exported CSV files retain full channel metadata and time-series structure, enabling seamless ingestion into MATLAB, Python (Pandas), Tableau, or enterprise EHS systems via standard API or batch upload protocols.

Is firmware update capability available in the field?

Firmware updates are performed via USB-connected PC using Graywolf-provided update utilities; no internet connection is required on the WolfPACK unit itself.

Does the system support automated report generation?

Customizable PDF reports—including cover pages, sensor-specific graphs, pass/fail indicators against user-defined limits, and annotated measurement summaries—can be scheduled or triggered manually within WolfSense2009.

What is the maximum recommended operating duration on internal battery?

Battery life varies by sensor load and sampling frequency; typical operation with 8 active sensors and 30-second intervals exceeds 6 hours. External 12 V DC power extends runtime indefinitely.