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


Deadly East Asian heat wave spreads into Japan, Korea and China

A long-lasting heat wave centered on the Chinese city of Shanghai has moved northeast into Japan and Korea, shattering high-temperature records and killing at least 10 people over the past week in those countries.

At least six people in South Korea died due to temperatures reaching 104 degrees Fahrenheit, The Korea Herald reported yesterday, with hundreds suffering from heat-related illnesses.

On Sunday, Japanese wire service Jiji Press reported at least four people had died due to heatstroke, including an 80-year-old woman in Wakayama prefecture, where temperatures had soared to a record-breaking 100.6 F. Other news agencies later reported at least nine people had died.

"In the five years I've been in Japan, this has easily been the hottest summer," said Perry Constantine, an American from Des Plaines, Ill., who now teaches English in Japan's southern prefecture of Kagoshima.

Before he adjusted the cooling system in his home, Constantine said, "I would wake up at 4:30, 5 in the morning just from the sheer heat."

Temperatures in Shimanto, a city in Japan's Kochi prefecture, reached 105.8 F yesterday, the highest temperature ever recorded in the country.

July and August maximum temperatures in Tokyo normally hover around 30 degrees Celsius (86 F), the Japan Meteorological Agency's website shows, although this number has been rising in recent years.

Hospitalizations rise, with no end in sight

"The heat wave issue is very concerning in Japan now," said Yano Katsunori, second secretary of the environment at the Embassy of Japan in Washington, D.C., noting that the nation has suffered from unusual heat throughout the summer.

Over the course of July, 23,699 people in Japan were hospitalized due to heatstroke, according to Jiji Press, with 27 dying.

The heat wave is due to a high-pressure area that has stalled over south China for weeks and is now moving northeast, said Dale Mohler, senior meteorologist with AccuWeather.com. "We're starting to see it flex its muscles a little bit and expand," he added.

But unless a typhoon were to move ashore and into the region, bringing rain and changes in air patterns along with it, there doesn't seem to be any relief in sight.

"I don't think any potential tropical storm or typhoon is going to be big enough or move into the right spot to really bring an end to this heat wave," Mohler said.

"When you get to a month, you usually see the end," he added. "But I don't see the end right now."

South Korea tries to cut electric demand to avoid blackouts

Meanwhile, 663 people in South Korea were reported ill from the heat yesterday, South Korean officials told The Korea Herald.

Because of "unprecedented power shortages ... expected over the summer due to higher temperatures than previous years," South Korea's Ministry of Trade, Industry and Energy (MOTIE) issued a warning earlier this summer that it would impose energy restrictions on businesses using more than 5,000 kilowatts of energy.

"Additionally, during peak demand hours, public institutions and buildings with higher electricity demands will be required to turn off their air conditioners every 30 minutes," the ministry said.

Yesterday, The Korea Times reported that blackouts are "looming as a real possibility" as two of the nation's power plants suspended operations.

In the article, Kim Jun-dong, deputy minister of energy and resources policy at MOTIE, called for "cooperation from the public and private sector to avoid a nationwide power crisis."

In China, clearance procedures for thermal coal imports have been fast-tracked to make up for the region's increase in power consumption, according to the Chinese government's official press agency Xinhua.

China has struggled with record-high temperatures since early July. On Wednesday, Shanghai broke its previous record of 105.1 F -- set less than two weeks before -- as the mercury rose to 105.4 F.

Last week, the Chinese Ministry of Civil Affairs said 5.95 million people in the nation faced drinking water shortages due to the heat wave, causing losses of about 12.1 billion yuan ($1.98 billion), Xinhua reported.

"If it's not the hottest, it's certainly in the top five hottest Augusts ever in that part of China," Mohler said. "We're on that kind of a pace."



Seoul: Seven people dead from heatstroke amid sweltering weather

Seven people have died of heatstroke over the past few days as scorching temperatures continue to blast Seoul, the capital of the South Korea, police said Friday.

The country has been suffering from the sweltering heat wave for weeks with temperatures in most parts of the country soaring above 35 degrees Celsius. The morning low on Friday was 31 degrees Celsius in Gangneung, Gangwon Province -- the highest since 1911 when the temperature measurement began in the country.

Morning lows were near 30 degrees in many parts of the country earlier in the day.

A 52-year-old man, identified only by his surname Choi, collapsed on his way to the peak of Mt. Halla on the southern resort island of Jeju at 1:16 p.m. Friday, a local police spokesman said. Choi was found by another mountaineer and escorted to a nearby hospital in a police helicopter, but died of heatstroke.

A 76-year-old man, known only by his family name Lee, was found dead in a bean field in Gunsan City, North Jeolla Province, at 1:00 p.m. Friday, police said, adding that he apparently died of heatstroke.

Police reported five more similar heatstroke cases across the country on Thursday and Friday alone.

Engineers were ordered to reduce the speed of their trains to 230 kilometers per hour on the high-speed railway section linking Ulsan City, South Gyeongsang Province to Gyeongju City, North Gyeongsang Province, for 25 minutes from 3:20 p.m. when the temperature of the railway surpassed 55 degrees Celsius, railway authorities said.

The high-speed trains normally travel at 300 kilometers per hour. Temperatures also rose above 55 degrees Celsius in other parts of the country's railway system for the day, slowing trains.

The government issued a preliminary warning for a possible power shortage earlier in the day. It marked the second such instance this year as the country's power reserves dropped below 3.5 million kilowatts due to soaring electricity consumption used for cooling. Central and provincial government buildings were instructed to refrain from using air conditioners to stave off a possible nationwide blackout.

Statistics from the Central Disaster and Safety Countermeasures Headquarters showed that 663 people have been hospitalized for heatstroke and other heat-related diseases since early June. More than 745,000 chickens, 40,829 ducks and 40 pigs have died due to the scorching temperatures for the past two months, the headquarters said.

The anti-disaster agency said that it has ordered more than 50,000 farmers and construction workers across the country to have a three-hour 'heat break' from 2:00 p.m.

The sweltering heat wave is forecast to continue for the next several days.



Temperature hits year's new high in Taipei

Focus Taiwan News Channel - Jun 21, 2013

Temperature hits year's new high in Taipei. 2013/06/21 18:25:24. Taipei, June 21 (CNA) Temperatures in Taipei rose to 36.6 degrees Celsius Friday, the highest in the city this year, according to the Central Weather Bureau. The high in Taipei was recorded at 1:45 p.m. The mercury also surged to 36 degrees in New Taipei's Banqiao District at 12:52 p.m. Temperatures at around noon in most areas of Taiwan ranged between 32 and 35 degrees as a result of warm southeasterly winds, the bureau said. Friday's reading was the fifth-highest in the city. The record stands at 37.7 degrees, recorded May 26, 1991, according to the bureau.


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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.