The GM816 handheld anemometer is a compact, reliable tool designed to measure wind speed and air movement with ease, making it an excellent choice for hobbies, fieldwork, HVAC checks, and general airflow monitoring.
Key Features:
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Measures wind speed up to 65 mph (approx. 30 m/s) — ideal for kite-surfing, drone flying, outdoor weather checks, ventilation inspections and more.
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Displays current / average / maximum wind speed values for enhanced insight.
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Supports multiple units of measurement: m/s, km/h, ft/min, knots, mph — giving you flexibility depending on your region or use-case.
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Built-in temperature reading (-10 °C to +45 °C / 14 °F to 113 °F) with option to switch between °C and °F.
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Backlit LCD display for use in low-light conditions, and automatic shut-off after inactivity to conserve battery.
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Lightweight and portable dimensions (approx. 105 × 40 × 18 mm, weight ~52 g) — easy to carry in a pocket or attach to a lanyard.
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Suitable for a variety of applications: weather monitoring, sail/board sports, HVAC duct checks, drone/RC flight assessment, environmental fieldwork and more.
Specification Highlights:
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Wind speed range: 0 – 30 m/s (≈0 – 65 mph)
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Wind speed accuracy: ±5%
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Temperature accuracy: ±2 °C (±3.6 °F)
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Power: CR2032 3 V battery (included)
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Operating humidity: ≤ 90% RH
Why Choose This Model?
Because of its compact size, ease of use, versatile unit options and decent accuracy, the GM816 represents great value whether you’re a hobbyist, technician or outdoor enthusiast. It combines both wind-speed and temperature measurement in one handy device, which can simplify your workflow.
Usage Tips:
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Hold or place the rotor vane directly in the airflow, ensuring the airflow direction aligns with the rotor for accurate measurement.
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For best accuracy, avoid obstructing the airflow or swirling it near hands or objects.
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If measuring outdoors, aim the sensor toward the oncoming wind, not sideways.
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Use the “MAX” or “AVG” modes to capture peak gusts or averaged flow conditions.
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Keep the battery fresh (and removed if storing for long periods) to maintain consistent performance.
Ideal For:
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HVAC/ventilation checks
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Outdoor sports (kitesurfing, windsurfing, paragliding)
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Drone/RC flight preparation
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Weather station or field-research use
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Industrial or lab airflow/ventilation verification





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