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How WBGT Measures Heat Stress
When you want to know why to use WBGT as a Heat Stress Indicator, it’s important to first look at what WBGT is. WBGT is based on an equation where a combination of environmental factors are used to calculate a reading. The calculation used measures the heat stress in direct sunlight. This type of reading also takes into account the temperature, wind speed, humidity, the angle of the sun and...Heat Stress Monitoring for Athletics and Sporting Events
Heat stress monitoring for athletics and sporting events is a big responsibility for athletic trainers, coaches, sports medicine providers and others who are involved with sports programs. Lives depend on accurate measurement of environmental conditions such as temperature, relative humidity, heat stress index, wet bulb temperature, wet bulb globe temperature (WBGT) and other vital environmental readings. Even when conditions may seem safe, the over-exertion that can so easily occur when...Industrial Hygiene and Heat Stress
Industrial hygiene and heat stress is an important topic for those who work in areas where high air temperatures and humid conditions, combined with radiant heat sources and constant interaction with hot items, can create a dangerous environment. Employees who work in dangerous conditions on a daily basis are at an especially high risk for health risks due to prolonged exposure to areas where high heat stress exists. The intense...Kestrel Shooters Weather Meter with Applied Ballistics
The creators of the popular Kestrel Weather & Environmental handheld meters have partnered with Applied Ballistics to launch the new Kestrel Shooters Weather Meter with Applied Ballistics technology. The new handheld meter, which gives shooters the information they need to improve accuracy and precision for long-range shooting, offers the compact convenience that is the hallmark of the Kestrel design with advanced Applied Ballistics technology for incredibly accurate results out...Adjusting the Pressure/Altitude - Adjusting the Pressure/Altitude on Your Kestrel 4000 Series
Your Kestrel 4000 Series Weather & Environmental Meter will measure air pressure in order to calculate barometric pressure and altitude. Changes in either air pressure or altitude will affect these readings, so it is important to make adjustments as necessary if you bring your Kestrel to a higher or lower altitude. To adjust the altitude, first you will need to obtain a barometric air pressure reading from a local...Patented Temperature Measurement
Patented temperature measurement developed by Nielson-Kellerman gives handheld Kestrel Meters the advantage over other brands of portable weather meters when it comes to reliability and advanced features and capabilities. In a hand-held weather device, the type of temperature measurement system that it utilizes is the key to how effective it is in providing accurate weather data readings. The patented temperature measurement found in Kestrel Meters highlights the differences between...Home Inspectors Find Great Use In Kestrel 4200 Air Flow Meter
Many home inspectors are now using the Kestrel 4200 Pocket Air Flow Meter in their jobs, as a big part of any inspection is taking a close look at the heating and air conditioning system in the home. The Kestrel 4200 meter is a handheld airflow tracking instrument that is a powerful tool for the job, providing the data and readings that home inspectors are looking for when they are...Crane Operators Turn to Kestrel to Assess Weather
Crane Companies Assess Weather Conditions with Kestrel Weather Instruments Crane operators have a tough job that depends not only on their skills in their field, but also on reliable tools and accurate atmospheric data while in operation. There are many reasons why crane operators turn to Kestrel to access weather conditions while they are on the job. The biggest reason is that weather conditions, including gusty winds and extreme temperatures,...Weather Instruments - A Guide
Basic Weather Instruments There are many different types of weather instruments out there for everyone - from those who are simply curious about the weather to those who want to know every detail about what is happening in the atmosphere. Those who are looking for the simplest type of readings find that the most basic weather instruments such as window thermometers and small weather stations are the way to go. ...Altitude and Mountain Climbing: Kestrel 2500 and Kestrel 4000
Kestrel Weather & Environmental Meters have long been an essential tool used by mountain climbers, hikers, and outdoor enthusiasts alike to stay one step ahead of inclement weather. Climbers have even used Kestrel meters under the most extreme weather conditions while scaling Mt. Everest. Last month, EXP Adventures, LLC, a company whose innovative approach toward providing time-pressed, intrepid travelers with challenging and culturally immersive experiences, took a group of climbers...Deer Season in the Midwest
Deer hunting season in the Midwest is always a popular time of year for hunters who enjoy the thrill of hunting with their friends and family. Beginning in late September and going typically through December (for muzzleloaders), deer-hunting season in the Midwest is a popular winter sport that many sports enthusiasts wait for all year long. Whether you hunt as a way to stock up on venison for the...Mining / Air Flow: Another option
We've been asked a few times about the PMA-2008 IS (Intrinsically safe) Meter. Currentlly, that is the only official IS meter we have as tested by the powers that be. For those who desire more out of the meter, read this question posed by a customer with a gold mine. I know there is the PMA-2008, which allows to do a 1 minute timed reading, but I understand this one...Various Businesss That use Kestrel Hygrometers
Hygrometers are traditionally thought of as being used by professionals who are involved in the atmospheric sciences; however, this type of technology is currently utilized in several different types of industries and businesses. Used to measure the amount of moisture in the environment, or the “humidity”, hygrometers are typically found in handheld meters and larger devices installed on site that are used in industrial areas and greenhouses, saunas, cigar...What is a Psychrometer
It’s not uncommon to hear “what is a psychrometer?” for those who aren’t familiar with how weather meters and other atmospheric tracking devices work. While it sounds like a complicated tool, a psychrometer is actually a rather simple type of hygrometer, an instrument that is used to measure the amount of humidity that is present in the atmosphere. A psychrometer measures the relative humidity in the atmosphere through the use...What is a Hygrometer
When looking for a weather meter that measures relative humidity, you may find yourself asking “what is a hygrometer?” The true hygrometer definition is an instrument which measures the water vapor of the atmosphere. This is also referred to as the “relative humidity” in the environment. All weather meters that measure relative humidity are also known as hygrometers. All Kestrel Meters from the 3000 series an up measure relative humidity,...Bluetooth - How long can it last giving real time data?
We recently put our Kestrel 4000 to a test when a customer logging data of the weather conditions outside, to his Android via bluetooth of while in the comfort of his home. He was surprised, as it lasted about 24 hours and then would auto shut off. What we do know is this.... If running the Bluetooth at 2 sec sample rates, the approximate current required is 25...Wind Meter for Wind Power Sports
A wind meter for wind power sports is a necessity for anyone who is addicted to high speed wind powered vehicles, kite flying and other fun wind sports. A wind meter for power sports should be durable, easy to read and, of course, easy to use. The small, handheld wind meters designed for wind power sports track a variety of readings, including wind speed, maximum wind speed, temperature, wind...Wet Bulb Globe Temperature Devices
Wet Bulb Globe Temperature devices like the Kestrel 4400 Heat Stress Device can help football teams, members of the military and others who work or train outdoors stay safe while training in hot, humid conditions. Wet bulb globe temperature devices measure heat, humidity, wind and solar radiation information that can be used to determine how long a practice session can safely be and what type of equipment should be used. ...Football Players & Heat Stroke
Football players and heat stroke has been an important topic throughout the athletic community, as each year, football players training in the off season suffer heat stroke and other dangerous heat-related illnesses. The concern surrounding football players and heat stroke is very real, and has been the focus of many public forums and conversations among teams because of the number of heat-related injuries and fatalities among athletes. When it...Auto Log - Kestrel 4000 Series
The Kestrel 4000 series can log data while the unit is turned off. This is a powerful feature for those needing data logged over time while preserving battery life. Setting it up: Turn the unit on, hit the power button again, scroll down 'memory options', and all the functions are in the easy menu. Be sure the auto log is set to 'on'... Choosing store rate: Interval store rate options:...'Sync Alt' - On/Off Function
This question has come up a few times from those using their Kestrel 4000 (and up) series. We asked Ben, head of tech support at Nielson Kellerman to help explain it. He writes: It's easier to explain by noting how the Kestrel used to work: as noted in the instructions, the user must start with one known and set that into the Kestrel (if you know your altitude then...Insight from the DOT
At night, they use modified concrete... (night pours) In this instance they're doing (1" to 2" thick... an overlay) a walkway on bridge. The acceptable evaporation for this pour is .1 pounds per foot per hour. If this rate increases due to wind change, relative humidty or temperature, and they are out of spec., the job won't start or they'll halt it.... In a day pour, it can change to...Bluetooth Real Time Display Example
The Bluetooth will transmit 10 meters (about 30 feet) – the Kestrel is a class 2 bluetooth device (as opposed to class 1 which will transmit 100 meters), it is class 2 because it’s a hand-held device (which means it cannot qualify as a class 1). You’ll note in the image there are a few grayed out boxes – these boxes correspond to measurements that are not available in the...
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