WL-21 AnemometerWind Speed andData Logger
WIND SPEED & DIRECTION DATA LOGGER
WIND DATA LOGGER
COMBINED WIND SPEED &
DIRECTION DISPLAY
0.3 - 50m/s
8-Wind Compass Rose
-22 - 140°F
Wind force Graph
With Timestamp
PRECISE DATA LOGGING
ANEMOMETERS
WIRELESS
WIND DATA
LOGGER
Up to 1 year of long-term data recording (10s interval)
Data can easily export to Excel for wind site analysis
Selectable Intervals: 2s, 5s, 10s, 1min, 5 mins, 10 mins, 60 mins
INDUSTRIAL GRADE WEATHER STATION
ABOUT WIND SPEED &ANEMOMETER DATA LOGGER
ROBUST WIND SENSOR COMPONENTS
Marine Grade Protection
Robust Ball Bearings
Replaceable Wind Cups
Enhanced Battery Life
RELIABLE
WIRELESS ANEMOMETER
Back 1-year global warranty.
Specifications-Wind Speed And Direction Sensor
The wireless module used on wind speed sensors only requires very low power consumption. The transmission power consumes 20-30 uA in normal condition and 35 mA peak current in every 2 seconds. The standard 3.6V Lithium battery can sustain the sensor for up to 3 years.
The transmission distance can reach as far as 500 meter in open space. The actual distance depends on the topology & obstacles. According to user experiences, the vertical transmission distance can be 200 meters in height. Harmonic disturbances are possible in theory, but so far we did not receive complaints about this.
Pairing between sensor & receiver is based on address.
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.
Yes. Users can connect unlimited receivers to one wireless sensor.
Manufacturer and third party (issued by SGS) Lab certificates can be ordered on demand.
- 500m Wireless Transmission Range
- Instant Visual & Audible Wind Alarm
- Data Recording Up to 1 Year
- Wind Data with Historical Graphs
- Accurate Wind Speed, Temperature, Air Pressure Measurements
- 3-years Sensor Battery Life
- Low Power Consumption
- Replaceable Wind Cups
| Item | Description |
| Wind Speed Measurement Range | 0.3...50 m/s |
| Wind Speed Accuracy | +/- 2 % FS |
| Wind Speed Resolution | 0.1 m/s 0.1 knots 0.1 MPH 0.1 km/hr |
| Units of Measurement | m/s, knots, MPH,l km/hr |
| Temperature Measurement Range | -30....+60 °C |
| Dimensions - Sensor | 262.5 x 183.5 x32mm |
| Dimensions - Display unit | 189.6 x 75.6 x 36.3mm |
| Receiver logging Interval | 2s, 5s, 10s, 1min, 5 mins, 10 mins, 60 mins |
| Display updating | every 2 seconds |
| Data transmission | every 2 seconds |
| Measurement interval | 2 seconds |
| Transmission frequency | 868MHz(default), 915MHz |
| Battery - sensor | 3.6V 18505 Lithium battery x1 |
| Battery - display unit | 1.5V AA battery x3, Micro USB port |
| Mounting | Magnetic sensor mounting bracket or 1/4" threaded hole |
Data Logging Anemometer-Find the Perfect Fit
WL-21 | WR-3 Plus | WL-410/SD | WindPro | |
|---|---|---|---|---|
 |  |  |  | |
| Wireless Range | Max 500m | Max 500m | WL410: Max 500m WL410XB: Max 1,300m | Max 1,000 meters Web Portal: Unlimited |
| Alarm | Buzzer, Backlight | Buzzer, Backlight | Buzzer + External warning device | Buzzer, Backlight, External device (optional), Web browser, Email |
| Datalogging | 64MB Built-in Memory | 64MB Built-in Memory | Optional: 4-20mA outputs Phone App | C128MB built-in memory Unlimited records (Web Portal) |
| Wind DirectSensor | Yes | No | Optional | Optional |
| Get a Quote > | WR-3 Plus > | WL410/SD > | WindPro > |
Our Customers
What Our Clients Say
The Scarlet wireless anemometer WL-21 is the best wind speed meter I ever used in my career life. It makes my job much easier and I can monitor wind speed in my office under bad weather conditions.
I have been using WL-21 on all the lifts in my company for the last 6 months and couldn’t be happier with their performances and high quality.
We are quite happy with the Scarlet WL-21 wireless wind speed meter. It works perfectly in our workshops. I highly recommend this wireless anemometer.