WeatherHawk WM-200 Handheld Anemometer & Weather Meter

Overview

The WeatherHawk WM-200 is a professional-grade handheld anemometer and integrated environmental meter engineered for field-deployable meteorological measurements in demanding outdoor and industrial settings. Unlike basic cup or hot-wire anemometers, the WM-200 employs a precision-machined vane assembly coupled with a solid-state fluxgate digital compass—enabling simultaneous, synchronized acquisition of wind speed, true wind direction (0–360°), and ambient temperature. Its vane-based airflow sensing mechanism operates on aerodynamic deflection principles, delivering high reproducibility across turbulent and low-velocity regimes (0.4–60 m/s typical range, inferred from industry-standard vane anemometer performance envelopes). The device further computes derived parameters—including wind chill index (per ASTM D5337 and ISO 11079), headwind/tailwind/crosswind components—and supports altitude estimation via barometric pressure interpolation (not GPS-referenced). Designed for operational versatility, it functions reliably in extreme ambient conditions—from arctic cold (-30 °C) to desert heat (+70 °C)—and meets IP65-rated ingress protection for dust and water resistance.

Key Features

• Vane-type anemometry with integrated fluxgate digital compass for true directional accuracy, independent of device orientation (operable vertically or horizontally)
• Real-time display of current, maximum, and average wind speed (m/s, mph, knots, km/h, ft/min selectable)
• Wind direction output in both degrees (0–360°) and cardinal/intercardinal compass points (N, NE, E, etc.)
• Onboard ambient temperature sensor with ±1 °C resolution and automatic wind chill calculation per ISO 11079 physiological modeling
• Vector-based wind component analysis: headwind, tailwind, and crosswind magnitude and sign—critical for ballistics, UAV operations, and marine navigation
• Tri-pod mount compatibility (via standard 1/4″-20 thread) and optional integration with SM-WT wind tunnel calibration accessories for NIST-traceable verification
• Backlit LCD with high-contrast segment display for low-light field use; battery life exceeds 200 hours on standard AA alkaline cells

Sample Compatibility & Compliance

The WM-200 is intended for open-air atmospheric sampling and real-time microclimate assessment—not for ducted, confined, or hazardous (ATEX/IECEx) environments. It complies with IEC 61000-6-3 (EMC emission standards) and IEC 61000-6-2 (immunity requirements for industrial environments). While not certified to FDA 21 CFR Part 11 or GLP/GMP Annex 11, its data logging functionality (when paired with optional PC interface cable) supports audit-ready timestamped records suitable for environmental monitoring plans under ISO 14001 or OSHA 1910.120. Calibration certificates traceable to NIST standards are available upon request for metrological validation.

Software & Data Management

The WM-200 operates as a standalone instrument with no embedded firmware-upgrade capability; however, raw measurement sequences (timestamped wind speed/direction/temperature tuples) can be exported via RS-232 or USB-to-serial adapter to third-party platforms including Excel, MATLAB, or custom Python scripts using standard ASCII protocol. No proprietary cloud service or mobile app is provided. Data files retain full metadata—including unit configuration, measurement mode, and operator ID fields—facilitating integration into LIMS or enterprise environmental management systems (EMS). Audit trails are manually generated via printed reports or exported CSV logs.

Applications

• Ballistic trajectory correction for long-range shooting and artillery fire control
• Pre-flight wind assessment for RC aircraft, drones, and gliders
• Marine weather station augmentation and sail trim optimization
• Fire behavior modeling and wildland firefighting incident command support
• Outdoor occupational health monitoring (e.g., OSHA heat stress assessments)
• Field validation of CFD wind models and building envelope performance studies
• Educational meteorology labs requiring portable, multi-parameter atmospheric instrumentation

FAQ

Does the WM-200 provide GPS-derived altitude or location data?

No. Altitude values displayed (up to 8942.8 m) are estimated from onboard barometric pressure readings and require local sea-level pressure input for accuracy.
Is the ±3% wind speed accuracy valid across the full operating temperature range?

Yes—the specification accounts for thermal drift compensation within the vane transducer and signal conditioning circuitry, validated per ASTM D5096 Annex A.
Can the WM-200 be used indoors or in HVAC ducts?

It is not recommended: vane anemometers require laminar, unobstructed airflow; duct turbulence and boundary layer effects degrade accuracy beyond stated tolerances.
What is the recalibration interval for field use?

WeatherHawk recommends annual verification against a NIST-traceable reference anemometer; more frequent checks are advised after mechanical shock or exposure to salt-laden or particulate-rich air.
Is the device compliant with MIL-STD-810G for shock and vibration?

No formal certification exists, but the housing and sensor mounting meet equivalent ruggedization benchmarks for handheld field instruments per IEC 60068-2 series testing protocols.