WL-21 Wind Data Logger
Industrial-Grade Wind Data Logger for Accurate Wind Speed and Direction Measurement
Wind Data Logger Combined Wind Speed & Direction Display
Experience long-term wind monitoring with the WL-21, displaying reliable wind speed, direction, temperature, and barometric pressure with up to 3 years continuous operation and support data logging up to 1 year long.
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Replacable Wind Cups
The wind cups made by tough material (ABS). With high sensitivity, they can detect low wind speeds from 0.3m/s.
Wireless Wind Sensor
WL-21 is wind speed and direction anemometer with easy to install. The wind vane is monitor wind direction in 0-359° range with compass reading.
Portable Receiver
It displays wind speed, direction, temperature, and air pressure data. It also issues an audio-visual alert at 80 dB for high wind.
Data & Power Transfer
WL-21 portable receiver equips with a single USB port for power supply and log output functions, ensuring continuous functionality.
Precise Data Logging Anemometers
Wireless Anemometer
Monitor Wind at Max. 500m Range
WL-21 consists of a wireless wind sensor and portable receiver. It provides accurate wind speed, wind direction, temperature, and air pressure measurements at max. 500m range.
Wireless Wind Sensor
Long-Hour Operation & All-Weather Protection
WL-21 wind sensor is equipped with wind cups and a wind vane. The wind sensor can works for up to 3 years of continuous operation and is IP67 certified for all-weather protection.
Portable Receiver
Instant Wind Readings & Alert
The receiver displays wind data and alerts for high speeds. It is powered by 1.5V AA batteries and USB port, making it perfect for long-hour operation.
Data Logging
Export Files to Windows in Excel Format
Data logging function is supported by built-in 64MB memory. It allows you to export wind data in .xlsx or .xls format to Windows-based computer, making the saving of historical data and analysis easier.
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Experience reliable wind measurements and data logging continuously with the WL-21 wireless anemometer.
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Magnetic Mounting Bracket
Port Terminal
Environmental Research
Paradana Ice Cave
WL-21 Package
Outdoor Event
Environmental Research
Wireless Wind Data Logger
WL-21 is capable of recording up to one year of long-term data at 10-second intervals, with options to customize these intervals to 2 sec, 5 sec, 10 sec, 1 min, 5 mins, 10 mins, and 60 mins. WL-21 stores wind speed, wind direction, temperature, and barometric pressure in its portable receiver. For wind analysis, you can easily export the data to a computer and view it in Excel format.
Quick Installation
WL-21 wind sensor is IP67 certified for all-weather protection and is easy to deploy in any setting. With its magnetic mounting bracket featuring three robust magnets, it adheres to metal surfaces. Whether it’s on cranes, rooftops, or outdoor fixtures, deploying the WL-21 is a quick and simple process.
Certification & Warranty
Scarlet’s wireless anemometer is fully compliant with CE and FCC certifications and has been calibrated in a wind tunnel, ensuring adherence to rigorous safety and quality standards. It is backed by a 1-year global warranty, reflecting our promise of quality and trust.
Robust Wind Sensor Components
Detachable Wind Cups
Utilized lightweight material for fast response and captures wind from every direction
Enhanced Battery Life
Up to three years of continuous operation
Marine Grade Protection
IP67-certified, watertight construction for comprehensive protection against water and dust
Durable Ball Bearings
Anti-corrosion stainless steel for dependable, long-lasting operation
Frequently Asked Questions
Find quick answers below, or visit our FAQ page for more.
What wind direction range can WL-21 measure?
0 to 359°, ensuring complete coverage with no blank sectors.
Can I export WL-21 data?
Yes, historical data can be exported in Excel format via Windows PC.
Can wind data be viewed from multiple locations?
Yes, user can connect 1 wind sensor to multiple WL-21 receivers.
Our Clients
Specifications
- Sensor
- Receiver
- Features
- Package List
- FAQ
- Download
| Item | Description |
|---|---|
| Wind speed measurement range | 0.3 to 50 m/s |
| Wind speed accuracy | ± 2% FS |
| Wind speed resolution | 0.1 |
| Wind speed units of measurement | m/s knots MPH km/hr |
| Temperature measurement range | -30 to +60 °C |
| Temperature unit | °C, °F |
| Wind direction range | 0-359° no blank sector |
| Data transmission | Every 2 seconds |
| Transmission frequency | 868MHz (default), 915MHz |
| Dimensions | 262.5 x 183.5 x 32 mm |
| Mounting | Magnetic sensor mounting bracket 1/4" threaded hole |
| Item | Description |
|---|---|
| Receiver buzzer | > 80 dB |
| Built-in memory | 64 mb |
| Data output | .xlsx, .xls |
| Data logger | Wind speed (Live/avg/max), Wind direction, Ambient Temperature, Wind Chill, Beaufort Scale, Air Pressure |
| Logging interval | 2 s, 5 s, 10 s, 1 min, 5 mins, 10 mins, 60 mins |
| Power supply | 1.5V AA battery x3, Micro USB port |
| Dimensions | 189.6 x 75.6 x 36.3 mm |
| Display updating | Every 2 seconds |
| Features |
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| ▪ 500m Wireless Transmission Range |
| ▪ Instant Visual & Audible Wind Alarm |
| ▪ Data Recording Up to 1 Year |
| ▪ Wind Data with Historical Graphs |
| ▪ Accurate Wind Speed, Direction, Temperature, Air Pressure Measurements |
| ▪ 3-years Sensor Battery Life |
| ▪ Low Power Consumption |
| ▪ Replaceable Wind Cups |
| Package List |
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| ▪ Wireless Sensor |
| ▪ Wind Cups |
| ▪ Receiver |
| ▪ Receiver Antenna |
| ▪ Receiver Holder |
| ▪ Adhesive Metal Flakes x 3 (for Receiver Holder installation) |
| ▪ Magnetic Sensor Mounting Bracket |
| ▪ AA Battery x 3 (for Receiver) |
| ▪ 3.6V 18505 Lithium battery x1 (placed in Sensor) |
| ▪ User Manual & Certificate |
| ▪ (Optional) Spare Wind Cups |
| ▪ (Optional) Spare Sensor Battery (3.6V 18505 Lithium battery) |
| ▪ (Optional) External Antenna |
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Yes, manufacturer and third party lab certificates can be ordered on demand.
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Up to 500 meters between sensor and receiver in a direct line of sight. Inside buildings or obstacles in between may decrease the transmission range.
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You won’t need to worry about replacing the wind sensor battery for an extended period, it’s powered by a 3.6V lithium battery that lasts up to 3 years. The low-power wireless sensor consumes only 20–30 µA under normal conditions, with a peak of 35 mA every 2 seconds.
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Pair the sensor and receiver using the wireless address labeled on the sensor.
The address is labeled on the sensor body. User can set receiver address by setting menus. All WL-21 were paired and tested before shipping. If the text instruction is still not clear, please visit [this video].
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WL-21 is a wireless wind speed & direction meter designed for enhanced worksite wind safety by providing real-time wind data and instant alerts.
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WL-21 connects wirelessly, eliminating cable concerns; simply attach the wind sensor to any metal surface with the mounting bracket. For step-by-step guidance, watch the installation tutorial video, the steps also apply for WL-21.
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No, all WL-21 units are paired and tested before shipping. Once you receive the WL-21, simply power on the receiver to view the wind speed readings.
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+/- 2% FS accuracy, with each wind sensor is calibrated and tested before shipping.
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±2% FS accuracy with 1° resolution, and each wind sensor is individually calibrated and tested before shipment.
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0.3 to 50 m/s with adjustable resolution between m/s (default), knots, MPH, km/hr.
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0 to 359°, ensuring complete coverage with no blank sectors.
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Sub-1GHz wireless band (with central frequency 868, 915 MHz) between sensor and receiver.
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Yes, IP67 all-weather protection. Built tough and flexible for industrial installation.
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Connect the portable receiver to Windows PC with USB cable and historical data can be export in Excel format. For step-by-step guidance, watch the installation tutorial video.
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Yes, user can connect 1 wind sensor to multiple WL-21 receivers within a 500 meters wireless range.
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Optional Sensors |
1 | 1 | 2 |
2 (each console) Unlimited Console (Web Portal) |
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Max Wireless Range |
500 meters | 500 meters | 1,000 meters |
1,000 meters Remote worldwide (Web Portal) |
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Measurement Parameters |
Wind speed Wind direction Air Temperature Air pressure |
Wind speed Air Temperature Air pressure |
Wind speed Wind direction Air temperature Air pressure |
Wind speed Wind direction Air Temperature Air pressure |
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Alerts |
Wind speed alarm | Wind speed alarm | 4-level wind speed/direction alarms | 4-level wind speed/direction alarms |
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Power Supply |
Sensor: 3.6V lithium battery Receiver: AA batteriey x 3/USB |
Sensor: 3.6V lithium battery Receiver: AA batteriey x 3/USB |
Sensor: 3.6V lithium battery Receiver: DC 24V power adapter |
Sensor: 3.6V lithium battery Receiver: DC 24V power adapter |
Diverse Applications of Scarlet Wireless Anemometer
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