BTMETER BT-100APP Bluetooth Anemometer Handheld Wind Speed Meter — Pocket 8-Vane Sensor, Dual Temp & Data Logging

This pocket-sized wind meter combines a sensitive 8-vane sensor, dual temperature probes and Bluetooth connectivity so you can read, record and export measurements quickly on-site. The BT-100APP displays wind speed in five units, records temperature in °C or °F, and can store data for later review. Lightweight and tripod-ready, it suits outdoor sports, HVAC checks, duct airflow calculations and general weather monitoring.

How accurate and sensitive is the BT-100APP?

The BT-100APP uses eight vanes and two temperature sensors to detect even low airflows with a stated wind speed range of 0.67–67.1 mph and ±5% accuracy. Temperature accuracy is ±2°C across the device range, with fine resolution for precise readings. This combination makes it reliable for both hobby weather monitoring and professional HVAC tasks.

• Wind speed range: 0.67–67.1 mph (resolution 0.1 m/s)
• Temperature range: −10–45°C (14–113°F) with 0.2°C resolution
• Accuracy: wind ±5% of reading, temperature ±2°C
• Eight vanes and two temp sensors for enhanced sensitivity

What features help with data logging and analysis?

The BT-100APP pairs with iOS and Android devices via Bluetooth to view live readings, record sessions and export logs as Excel or TXT files. The unit also offers onboard data hold and logging so you can capture values when a phone is not connected. A 1/4" tripod mount supports continuous measurements during longer monitoring tasks.

• Bluetooth app: live view, recording, export to Excel/TXT
• On-device data logger and data hold function
• 1/4" metal tripod socket for fixed measurement setups
• Adjustable backlight and auto power-off to conserve battery

How portable and durable is this handheld wind meter?

The meter is designed for field use: compact, lightweight and easy to carry for outdoor sports or work on site. Auto power-off, manual/auto backlight and an adjustable sleep timer extend battery life. The metal tripod thread and a rugged body let you fix it for stable readings or use it handheld during activities like sailing, kite flying or drone piloting.

• Small, lightweight housing for easy transport
• Auto power-off and backlight control to save battery
• Tripod-ready 1/4" metal mounting hole for continuous tests
• Suitable for sailing, shooting, HVAC, climbing, drones, and more

How do I calculate airflow (CFM) using this device?

The BT-100APP provides average air velocity readings you can use to compute CFM manually. Multiply the average air velocity (in feet per minute) by the duct cross-sectional area in square feet to get airflow in CFM. The app-exported data makes it easy to transfer velocity readings into spreadsheets for CFM calculations.

• Measure air velocity and convert m/s to feet per minute (FPM)
• CFM formula: CFM = Average Air Velocity (FPM) × Duct Area (ft²)
• Exported CSV/Excel simplifies batch calculations and reporting
• On-device resolution and sensitivity help capture low airflow values

Who this is for: The BTMETER BT-100APP is designed for outdoor enthusiasts, sailors, drone pilots and field technicians who need a portable, accurate wind and temperature meter with modern connectivity. It also fits HVAC professionals and hobbyists who require sensitive low-flow detection and simple CFM calculations. If you want quick on-site readings with the option to log and export data to a phone or computer, this anemometer is a practical choice.