Long Range Wireless Anemometer WR-3

Scarlet WR-3. The Wireless Anemometer Designed for Crane Safety and
Wind Monitoring Onsite

Clients Using Scarlet WR-3
0+ Year
Battery Life
0 m
Transmission Distance


Why WR-3

Cable Free

Get rid of traditional cable-type anemometer. Avoid possible risks from machine operation. Scarlet WR-3 anemometer gives users a wireless wind monitoring solution.

Long Life

4-year battery life of wind speed sensor in all weather conditions. The sensor is designed to use in rigid environments such as dessert, ocean and mountains.

Stay Alert

Never worries about high wind. Develop a safer working environment. WR-3 Anemometer sends automatic high-volume alarms based on user settings.

Wireless Sensor

WR-3 adopts 433/868/900 MHz wireless technology to ensure better performance for barrier penetration and achieving long range transmission. The sensors start sending data when wind cups revolve. The sensor will go to sleep mode when wind cups stop revolving for more than 6 hours. Data transmit rate: every 2 seconds.

The ultra-long 400 meter transmission distance makes WR-3 a perfect gadget to help you monitor wind speed on crane and prevent from high wind risks.

wr-3 sensor bearing


Handheld Receiver

Large LCD display shows digital wind speed, temperature and beaufort chart clearly. Anti-slip rubber on two slides helps users hold the receiver in place during work. User-friendly interface and simple button design allows you to operate the device easily with only one hand.

When the wind reaches a certain speed, an alarm will be triggered, and it will continue as long as high wind is detected. The alarm buzzer located on top of the receiver can effectively warn users at the level of 90 dB.

Low Power Consumption

We use innovative low-power consumption wirless technology on WR-3. The battery power consumption is only 20-30 uA in normal condition and 35 mA peak current during data transmission. 3.6V Lithium battery with 2400 mAh capacity can run the sensor for 4 years.

4-year long battery life reduces the maintenance cost significantly. Low battery indicatior on the display monitor will show up when battery capacity is lowered than 10%.


What Our Clients Say

  • I have been using WR-3 on all the lifts in my company for the last 6 months and couldn't be happier with their performances and high quality.

    Hamid Bashir
    Crane Manger Technical Department, DP World KSA
  • We are quite happy with Scarlet WR-3 wireless wind speed meter. It works perfect in our workshops. I highly recommend this wireless anemometer.

    Håkan Pettersson
    Senior Engineer, Support and Services, Saab AB Sweden
  • The Scarlet wireless anemometer WR-3 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.

    John Leavy
    Project Manager, Pittsburgh PA, USA


High temperatures to sear much of Central and Eastern Europe

A "code red" weather warning was in place for central parts of the Czech Republic on July 30 while several countries in Central and Eastern Europe, including Bulgaria, had significant parts under the lesser code orange warning.

On July 30, Bulgaria faced code orange weather warnings for the regions of Vidin, Vratsa, Montana, Pleven, Veliko Turnovo, Rousse, Blagoevgrad, Pazardzhik, Plovdiv, Stara Zagora, Sliven, Yambol and Haskovo. Temperatures were expected to range from 35 to 40 degrees Celsius. The rest of the country was under a code yellow weather warning.

Code Orange weather warnings were issued for southern parts of Romania, all of Serbia, Montenegro, eastern parts of Croatia, parts of northern Hungary, north-eastern Austria, south-western Poland and Slovenia, while much of Greece was subject to a code yellow weather warning.

The Slovak Hydrometeorological Institute (SHMÚ) issued a heat warning for several districts in Slovakia where the temperatures could reach up to 40 Celsius degrees, the Slovak Spectator said on July 29. About 152 people collapsed on July 28, of which 80 had to be taken to hospital. The SHMÚ was also warning against storms and strong wind.

In Romania, the National Weather Administration (ANM) issued a code orange warning for July 30 for eight counties in southern and western Romania, the Independent Balkan News Agency said.

The ANM said that the scorching hot weather would intensify in the western counties of Arad, Timis and Caras-Severin as well as the southern counties of Mehedinti, Dolj and Olt , with highs expected to reach 39-40 degrees Celsius. Thermal discomfort is expected to worsen, with the temperature-humidity index expected to exceed the critical threshold of 80, the report said.

After a heat wave that hit the Czech Republic this past weekend and on July 29, temperatures would now drop somewhat over the course of the week but "tropy" – as tropical conditions are called in Czech – would return again at the weekend, Radio Prague said. Forecasters are predicting temperatures of up to 34 degrees Celsius.

Croatian media said on July 29 that Meteo Alarm, that alerts Europe of extreme weather, has issued a warning of a heat wave in Croatia.



Europe Sizzles Through More Intense Heat

Even as much of the central and eastern U.S. basks in unseasonably cool July weather, Europe has been baking in another heat wave, and a renewed surge of heat promises to add to the misery in the coming days.

Polish news website gazeta.pl reported Sunday that 41 children were taken to a hospital after suffering from overheating and dehydration waiting in a broken-down bus in the village of Gostynie in central Poland. Temperatures surged into the mid-90s Fahrenheit (mid-30s Celsius) across much of Poland's interior, including most of its largest cities.

The situation was no more bearable in Italy, where Florence and Bologna both topped out at 100ºF (38ºC) Sunday. The Corriere della Sera newspaper reported 14 Italian cities had been placed under red alerts, the highest possible alarm, for dangerous levels of heat Sunday. This included areas as far north as Milan, where the mercury reached 95ºF (35ºC).

After a brief reprieve Monday, more intense heat is expected to grip many European countries later this week with a new surge of hot air arriving from northern Africa.

Readings could surge even higher by next weekend in Italy, with both Florence and Bologna expected to push a few degrees past the century mark. Farther to the north and east, the brunt of the current heat wave will impact much of Eastern Europe on Monday.

That second surge of heat impacting Italy by next weekend will also spread across much of southern and western Europe.

Areas farther northeast such as Poland will likely be spared a second round of scorching weather. But in major European capitals such as Paris and Madrid, the heat will be brutal by late week, with Paris surging well into the 90s and much of interior Spain in triple digits.





World Health Organization - How hot weather affects health

WHO/Europe Warn Extreme Heat on Health Impact

Heat can trigger exhaustion, confusion and even heart attacks, as well as worsen existing conditions, such as cardiovascular and respiratory diseases. The most vulnerable groups include elderly people, infants and children, people with lower socioeconomic status or chronic diseases, those taking certain medications and people in particular occupations outdoors (such as farming, construction, oil and gas operations and landscaping) or indoors (steel and other metal foundries, ceramic plants, mining operations, bakeries and commercial kitchens). The harmful effects of hot weather are largely preventable, however.

According to the international Emergency Events Database (EM-DAT), heat-waves were the deadliest extreme weather events from 1980 to 2011. The 2003 heat-wave caused over 70 000 excess deaths in Europe from June to September.

Climate change is expected to increase the frequency and intensity of heat-waves. For instance, with a high-level climate-change scenario/high-level carbon-dioxide (CO2) scenario, European cities – such as Athens, Budapest, Paris and Rome – can expect more than 400 deaths per year due to high temperatures in the future, according to the EuroHEAT project (funded by the European Union (EU) and coordinated by WHO/Europe).

Simple measures to reduce exposure during a heat-wave

  • Keep your home cool and keep out of the heat as much as possible.
  • Keep your body cool and drink regularly.
  • Seek medical advice if you are suffering from a chronic medical condition or taking multiple medicines.
  • If you feel unwell, try to get help and move to a cool place as soon as possible.
  • If a family member or another person has hot, dry skin, delirium and convulsions, and/or is unconscious, call a doctor/ambulance immediately. While waiting for help, move the person to a cool place, put him or her in a horizontal position and elevate the legs and hips. Remove clothing and cool the skin by placing cold packs on the neck, armpits and groin, fanning continuously and spraying the skin with water at 25–30 °C, for example. Measure the person's body temperature. Do not give acetylsalicylic acid (aspirin) or paracetamol. Position an unconscious person on his or her side.
  • Seek further information on the health effects of heat and how to prevent them.

WHO recommendations and support

WHO/Europe recommends that countries and regions in Europe develop and implement heat–health action plans to prevent, minimize and react to heat-related risks to health. It supports an online tool providing medium-term forecasts of heat-waves, which can support health services' planning, and has developed a package of guidance for policy-makers, health professionals and the public on how to prevent and cope with the health effects of heat-waves.


Public health advice on preventing health effects of heat. New and updated information for different audiences
WHO/Europe, 2011
Heat–health action plans. Guidance
WHO/Europe, 2008
Enjoy the sun, but stay safe
Improving public health responses to extreme weather/heat-waves. Summary for policy-makers. EuroHEAT
WHO/Europe, 2009
Climate information decision support tool in Europe



Heat-related mortality in Europe

A study showed the heat-related deaths much lower than cold-related mortality in Europe 

Excess heat and cold are both associated with increases in mortality. The temperatures at which populations are affected vary geographically. Researchers from the Queen Mary and Westfield College, London, UK undertook an observational population study to assess heat-related mortality in seven regions of Europe. They looked at mortality among people aged 65-74 in north Finland, south Finland, Germany, Netherlands, London, north Italy and Athens.

They found that:

Mortality was lowest at 14.3-17.3ºC in north Finland, and at 22.7-25.7ºC in Athens
Regions where the summers are hotter do not have significantly higher annual heat-related mortality than cooler lands
Mean annual heat-related mortalities were 304 per million population in north Finland, 445 in Athens and 40 in London
By contrast, cold-related mortality figures were much higher, at 2,457, 2,533 and 3,129 respectively.
The authors concluded that populations in Europe have successfully adapted to mean summer temperatures ranging from 13.5ºC to 24.1ºC, and may be expected to adjust to the predicted global warming with little increase in heat-related mortality. Measures to help people protect against cold in winter may allow substantial reductions in overall mortality as temperatures rise.


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Build Safety Now.

Manage risks. No high wind disasters.

Scarlet WR-3 provides an elegant approach to manage on-site risks. We believe safety can be improved with well designed instruments. If you still have questions in mind, please do not hesitate to contact us. Get a quotation today. Reduce the risk, save money.