Vane anemometer NB-IoT-VA

multi-channelwirelessbattery-powered

Description
The NB-IoT-VA series propeller anemometer measures airflow (airspeed) with high accuracy, logs values locally and automatically uploads data to the cloud via the Narrowband IoT (NB‑IoT) cellular network. The device operates fully autonomously without the need for a router, gateway or additional equipment. Transmitters include a Bluetooth Low Energy (BLE) interface for quick configuration from a smartphone.

Main features

• Direct data transmission over NB‑IoT network (autonomous, gatewayless)
• Bluetooth Low Energy interface for mobile configuration
• Removable measurement heads (CLIC system) for easy replacement without losing calibration
• Local logging up to 40,000 measurements
• Available in three diameters to suit different measurement ranges

Accuracy and design
The propeller anemometer provides high accuracy because the propeller rotational speed is linearly proportional to flow velocity and independent of pressure, temperature, density or humidity. The removable head design simplifies maintenance and component replacement while preserving calibration integrity.

Technical data / specifications

• Available diameters: Micro (Ø 11 x 15 mm), Mini (Ø 22 x 28 mm), Macro (Ø 85 x 80 mm)
• Measuring ranges: 0…20 m/s or 0…40 m/s
• Number of measurement channels: 1 or 2
• Operating temperature: -20 to +80 °C
• Sensor length: 165 mm to 225 mm
• Memory size: 40,000 measurements
• Measurement interval: configurable from 1 minute to 10 days
• Battery life: up to 10 years
• Transmission: NB‑IoT (cellular) — autonomous, gatewayless
• Configuration: Bluetooth Low Energy (BLE) via smartphone
• Measurement heads: removable/replaceable (CLIC system)