Anemometer Digital Handheld GM816, 65MPH Wind Speed Meter with Airflow Sensor,

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Description

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:

  • Measures wind speed up to 65 mph (approx. 30 m/s) — ideal for kite-surfing, drone flying, outdoor weather checks, ventilation inspections and more.

  • Displays current / average / maximum wind speed values for enhanced insight.

  • Supports multiple units of measurement: m/s, km/h, ft/min, knots, mph — giving you flexibility depending on your region or use-case.

  • Built-in temperature reading (-10 °C to +45 °C / 14 °F to 113 °F) with option to switch between °C and °F.

  • Backlit LCD display for use in low-light conditions, and automatic shut-off after inactivity to conserve battery.

  • Lightweight and portable dimensions (approx. 105 × 40 × 18 mm, weight ~52 g) — easy to carry in a pocket or attach to a lanyard.

  • Suitable for a variety of applications: weather monitoring, sail/board sports, HVAC duct checks, drone/RC flight assessment, environmental fieldwork and more.

Specification Highlights:

  • Wind speed range: 0 – 30 m/s (≈0 – 65 mph)

  • Wind speed accuracy: ±5%

  • Temperature accuracy: ±2 °C (±3.6 °F)

  • Power: CR2032 3 V battery (included)

  • 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:

  • Hold or place the rotor vane directly in the airflow, ensuring the airflow direction aligns with the rotor for accurate measurement.

  • For best accuracy, avoid obstructing the airflow or swirling it near hands or objects.

  • If measuring outdoors, aim the sensor toward the oncoming wind, not sideways.

  • Use the “MAX” or “AVG” modes to capture peak gusts or averaged flow conditions.

  • Keep the battery fresh (and removed if storing for long periods) to maintain consistent performance.

Ideal For:

  • HVAC/ventilation checks

  • Outdoor sports (kitesurfing, windsurfing, paragliding)

  • Drone/RC flight preparation

  • Weather station or field-research use

  • Industrial or lab airflow/ventilation verification

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