Richard Paul Russell Ltd has recently extended their WeatherFile network in the Solent with the addition of a Gill MaxiMet GMX200 sensor at Ryde Pier

Richard Paul Russell Ltd has recenDSC_7213 edittly extended their WeatherFile network in the Solent with the addition of a Gill MaxiMet GMX200 sensor at Ryde Pier.

This takes the Solent network to five and is an essential resource for sailors, water sport enthusiasts and others wishing to have live and accurate wind speed and direction measurements.

The MaxiMet range of compact weather stations is designed and manufactured by Gill Instruments. MaxiMet products use reliable, high quality instruments to provide accurate meteorological information in a wide variety of applications. The Gill MaxiMet GMX200 sensor at Ryde Pier has a built in compass that will always find north thus increasing further accuracy regardless of sensor movement.

One of the main challenges Richard Paul Russell Ltd faced when fitting this unit was to overcome the lack of a local power supply and Wi-Fi internet access. Our newly developed WeatherFile Mobile Unit (WMU) allows data to be gathered directly from the Gill MaxiMet GMX200 sensor and sent to our WeatherFile website. This was locally powered through a deep cycle leisure battery (70Ahr) connected to a solar panel. The result is cable free live data through WeatherFile completely independent of mains power and local internet.

Further applications for this system could include weather monitoring and warning from isolated locations, construction industry, including crane operations, health and safety site operations, marine and offshore, wind farm surveying, roads, bridges and tunnels, agriculture and horticulture, sports and outdoor activities, education and research projects, remote airfields and many others.

Another key feature is the use of the mobile network to transfer the wind and weather data to, this separates it from the customers own Wi-Fi network and any associated security risks.

For more information contact Richard Paul Russell Ltd at


The Beast from the East – WindChill

BBC Weather ‘A spell of heavy snow and blizzard conditions is expected. The snow will be accompanied by very strong easterly winds leading to severe drifting. Some places could also see significant ice build up due to freezing rain from later on Thursday evening, most likely in the south of the area. Long delays and cancellations of public transport seem highly likely. Some roads are likely to become blocked by deep snow, stranding vehicles and passengers. Long interruptions to power supplies and other utilities are very likely to occur, along with damage to trees and other structures due to heavy snow or ice.’

Sub-Zero temperatures and high winds so the Chilling effects of wind needs close monitoring.

Wind Chill becomes a hazard when heat is drawn away from the skin faster than the body can replace it. This may lead to frostbite or worse.

The chilling effect of the wind, a combination of wind speed and temperature, can be represented by the lower temperature that would be required to produce the same chilling sensation for a person walking in calm conditions. Wind Chill indicates to the user how their environment really feels and is an important indicator in assessing the comfort of personnel spending periods outdoors.

Take a look at the Wind Chill Table

All Kestrel Weather Meters (except the Kestrel 1000) are thermo-anemometers and allow Wind Chill to be calculated and displayed.

The Kestrel 2000 is a small, electronic rotating vane type anemometer (wind meter) with a built-in temperature sensor. In order to quickly determine a steady temperature reading, the precision thermistor temperature sensor is mounted externally.

Kestrel 2000

Working at Heights – It’s a Windy Winter!

Safety is vital when working at height. HSE guidelines for the selection and management of mobile elevating work platforms (MEWPs) stress the importance of assessing hazards, especially those caused by wet, cold and windy weather.

Workers should be able to make informed decisions – a Kestrel puts that vital information into the hands of the MEWP operator providing accurate and instant readings of wind speed and temperature, on site – where it matters.

Strong winds impose additional loads on mobile platforms and affect stability. Exceeding the manufacturers’ stated wind speed limits can result in damage to equipment, or worse, surrounding structures and workers.

The Kestrel 1000 Hand-Held Wind Meter  gives MEWP operators the crucial wind speed data they need, including max wind speed in gusts that may be caused by local ‘tunnel effects’ due to surrounding structures.

In cold conditions wind chill can quickly affect an operator’s dexterity and concentration. The Kestrel 2000 Hand-Held Thermo-Anemometer provides additional temperature and wind chill data.

Kestrel wind and weather instruments are designed for the professional – quality, robust, waterproof, easy-to-use instruments each with a 5-year warranty.

3 kestrels

Complete Kestrel Weather Stations

at Richard Paul Russell Ltd  the very popular discount on the Complete Kestrel Weather Meter package has continued with the New Kestrel 5000 and Kestrel 5500.

The Kestrel Weather Stations give a 12.5% and 10% discount over buying the parts individually. The Kestrel 5000 and Kestrel 5500 Weather Station combine the weather meter with the Kestrel Vane Mount and Large Tripod to create a complete standalone weather station.

These complete weather stations can be left remotely with no human involvement to continuously log the incoming data which can be downloaded using the USB Data Transfer Interface or with the excellent LiNK (Bluetooth Low Energy) option, automatically to your Android or iOS  Phone, Tablet or Laptop.

These packages offer the ultimate in fast, accurate and flexible weather data collection at an affordable price.

Kestrel 5500

HVAC measurements

Some interesting reading from the NK Blog….

Balancing HVAC system is the single, most important step that can be taken to assure your systems produce comfort and operate efficiently. One of the key steps in balancing a system, new or old, is to make sure the airflow coming from each duct is enough to meet demand. ASHRAE Standard 111 covers the procedures to be used when measuring, testing, adjusting, and balancing an HVAC system. While calculations can be made using a few tools and some maths, the Kestrel 5200 Professional does the work for you. Take a look at the steps involved in determining Volume Air Flow without a Kestrel:

  1. Measure air velocity and write it down.
  2. Measure duct dimensions and write them down. (radius, or height and width of opening)
  3. Calculate cross-sectional area using π(r)2 for circular ducts or x(y) for rectangular ducts.
  4. Calculate air flow by multiplying area by air velocity

Now compare that to calculating Volume Air Flow using a Kestrel:

  1. Measure duct dimensions and enter them into the Kestrel.
  2. Hold the Kestrel to the duct opening to directly measure air flow.

The Kestrel 5200  simplifies the process and eliminates the potential for human error when making the various calculations used to determine Volume Air Flow. Not only that, the Kestrel also measures temperature, humidity, and moisture content in air, so you can determine dehumidification needs and the overall comfort level of the home.


Live Wind and Weather Data at Cowes Week August 2017

Working with the Cowes Week Meteorologist, and the support of Wight Link Ferries, RPR have installed additional Weather Monitoring on the Isle of Wight, at Wight Link’s Ryde Pier for the Cowes Week Regatta.

The annual Cowes Week Regatta dates back to the days of the Price Regent and his interest in yachting, this continued after he became King George IV. The first race started at 09:30 on Thursday 10 August 1826 with the prize of a “Gold Cup of the value of £100”. The modern regatta, with 40 daily sailing races, up to 1,000 boats, and 8,000 competitors ranging from Olympic and world-class professionals to weekend sailors, it is the largest sailing regatta of its kind in the world.

The GSM enabled Wind and Weather Station is self-contained, mounted on an aluminium mast suitable for temporary or permanent fixture, with power supplied by battery or local mains.

FlexiMet Wind Systems are used to deliver highly accurate, reliable Wind Speed, Wind Direction along with other Weather measurements such as Pressure, Temperature, Relative Humidity and Rainfall data.

Over the last 12 months Temporary weather sites have been in use for visitors and event personnel at the RHS Flower Shows at Chelsea, Hampton Court, Tatton Park and Chatsworth House. Other diverse event such as Brands Hatch motor racing, Prudential Ride London, BBC Countryfile Live, Victorious Festival and the 2016 Olympic venues in Brazil. They are also used in airports, construction sites, emergency services and any situations where wind and weather monitoring is required. The system allows the flexibility for contractors and visitors on and off site to view real-time wind data.

Richard Paul Russell Ltd introduced the GSM enabled system to the FlexiMet range during 2016. These self-contained mobile systems send live data to where wind and weather can be viewed live, online, on any internet connected device ( Phone, Tablet, Laptop or PC ).

The systems sensors are based on the MaxiMetGMX range. These are maintenance-free and deliver the ultimate in highly accurate wind speed, direction and weather monitoring. The corrosion free exterior eliminates costly maintenance and servicing, so is also the perfect choice for remote, offshore or long term monitoring,

Data is recorded on the internal SpaceLogger.W8.Wireless datalogger (data is stored on a removable SD memory card) and also is transmitted live via GRPS into the database.

Short term events such as festivals and sports events may lease or rent a system for the duration than purchase outright. Ask Richard Paul Russell Ltd for details of this cost effective way of monitoring environmental conditions during an event.

Take a look at the Live Wind & Weather conditions at Lendy Cowes Week

cowes week 2017    cowes week 2017 a

Live Weather Widgets for All

Following the phenomenal success of the BBC Countryfile Live show at Blenheim Palace last summer, now any web site can have a Widget showing local Live Wind and Weather on their front page.

With Health and Safety requirements highlighting the need to know local Wind and Weather conditions at temporary events and permanent locations, the decision was made to make front page widgets available.

RPR were asked to provide the first BBC CountryFile Live event at Blenheim Palace with local live weather data. The data was streamed from an RPR FlexiMet GSM weather station installed on site at the event and the live weather data featured on the event website front page.

An example of Widget showing Live Wind and Weather from Stornoway in the Outer Hebrides, Scotland.


Widgets are the simple way to show live and accurate details of local conditions for anybody with internet access. In the background the knowledge that all the Wind and Weather data is recorded and stored on secure servers if detailed analysis is required.

An example of Widget showing Live Wind and Weather from Hurst Castle in Hampshire


Please contact Richard Paul Russell Ltd for your website live weather widget.

Wind and Weather data is available on