$194.00. Digit height 0.36 in / 9 mm. All Kestrel Meters are Designed & Built in the USA and backed with a 5-year warranty. MIL-STD-810g, Transit Shock, Method 516.6 Procedure IV; unit only; impact may damage replaceable impeller. *F/S only in Ballistics units. The thermodynamic wet-bulb temperature is the temperature a parcel of air would have if cooled adiabatically to saturation temperature via water evaporating into it. Sign up through their website, www.id.me and the discount will be available during the checkout process. The Kestrel 3500 is a rugged, multi-function wind and weather meter that measures all of the environmental … By spending an equal amount of time at each measurement location and quickly moving between measurement locations, the average air flow measurement can provide a more accurate measure of the air flow in the duct. $381.96. Holding the unit off-axis by 5° will reduce accuracy by 1%, 10° will reduce accuracy by 2% and 15° will reduce accuracy by 3%. Split second decisions in the field leave no time for guesswork. 19 product ratings - Wind anemometer… The full Kestrel range is available on request. https://kestrelinstruments.com/kestrel-3500-pocket-weather-meter For K1000-K3500 you would enter this by pressing both outside buttons. Designed to be your trouble-free companion, the Kestrel 3500 … Thermistor may also be used to measure temperature of water or snow by submerging thermistor portion into material -- remove impeller prior to taking submerged measurements and ensure humidity sensor membrane is free of liquid water prior to taking humidity-based measurements after submersion. The NV's backlight incorporates an optical filter to reduce overall brightness and minimize blue and green spectrum light to preserve night vision. Kestrel 3500 Pocket Weather Meter / Digital Psychrometer Altimeter Anemometer Every Kestrel is designed and manufactured at NK’s (Nielsen-Kellerman) facility in Boothwyn, Pennsylvania … CE certified, RoHS and WEEE compliant. Height above Mean Sea Level ("MSL"). Safe range for pesticide spraying is 4 to 16 °F / 2 to 9 °C. item 1 Kestrel 3500 Waterproof Pocket Anemometer Weather Meter 0835 - Authorized Dealer 1 - Kestrel 3500 Waterproof Pocket Anemometer Weather Meter 0835 - Authorized Dealer. Temperature compensated pressure (barometric) altimeter requires accurate reference barometric pressure to produce maximum absolute accuracy. -22.0 °F to 140.0 °F | -30.0 °C to 60.0 °C. before taking measurements that rely upon these values. A Kestrel vane mount will isolate the Kestrel Meter from erroneous humidity influences and keep it oriented into the wind or air flow while taking measurements. 1 watchers. https://kestrelmeters.com/products/kestrel-3500-weather-meter The wind speed displayed by the Kestrel Meter is a 3 second rolling average. Calculated based on the NWS Wind Chill Temperature (WCT) Index, revised 2001, with wind speed adjusted by a factor of 1.5 to yield equivalent results to wind speed measured at 10m above ground. Relative humidity and all measurements which include RH in their calculation may require as long as 1 minute to fully equilibrate to a large change in the measurement environment. Engraving Note: Please make sure that everything is spelled correctly, as your engraved product cannot be returned. The Kestrel 3500 is a rugged, multi-function wind and weather meter that measures all the environmental variables, including wind speed, that you need to calculate accurate ballistic solutions and train your environmental insight at the range. Calibration drift < 1% after 100 hours use at 16 MPH | 7 m/s. 14° F to 131° F | -10 °C to 55 °C Measurements may be taken beyond the limits of the operational temperature range of the display and batteries by maintaining the unit within the operational range and exposing it to the more extreme environment for the minimum time necessary to take reading. Replace the the impeller. Display updates every 1 second. Temperature that a volume of air must be cooled to at constant pressure for the water vapor present to condense into dew and form on a solid surface. 1 inch|25 mm diameter impeller with precision axle and low-friction Zytel® bearings. Some units have a dedicated “Pressure” screen which shows Station Pressure, the raw pressure reading straight from the sensor. Airflow of 2.2 mph|1 m/s or greater provides fastest response and reduction of insolation effect. Taking readings with the Kestrel in your hand or over your body can raise relative humidity by 5% or more. Designed and manufactured in the USA from US and imported components. Data Upload & Bluetooth® Data Connect Option. Calculated based on NWS Heat Index (HI) tables. Avoid covering the large humidity chamber opening on the case rear with your fingers. Aviation green electroluminescent backlight. Kestrel Australia owns and operates. ID.me provides identity proofing, authentication, and group affiliation verification that allows eligible users to take advantage of discounts and special offers. Buy It Now +$35.81 shipping. Rugged, simple and accurate wind speed, temperature, humidity, and pressure meter. Enter this reference altitude on the barometric pressure screen. Kestrel Professional Meters can calculate air flow through a duct by combining user input information about the size and shape of the duct with the measured air velocity. Startup speed stated as lower limit, readings may be taken down to 0.4 m/s | 79 ft/min | 1.5 km/h | .9 mph | .8 kt after impeller startup. Unit is a model 3500 and appears to be working properly, but I wasn't happy that it was in a model 3000 box with some stickers showing the 3500 info/specs placed over the portions of the box that have the … The Kestrel 3500's easy to use menu system scrolls through 9 different environmental measurements. Can also be considered to be the water-to-air saturation temperature. The highly sensitive and user-replaceable impeller technology provides accurate wind speed info. Ensure the Kestrel is oriented into the wind and able to measure the full wind value. (NK recommends identifying your current altitude since it is constant.). (Be sure the source of shade is not obstructing the wind speed measurement.) Monolithic silicon piezoresistive pressure sensor with second-order temperature correction. / 122 x 42 x 18 mm. Accurate Wind Speed Readings with the Kestrel 1000 Handheld Anemometer Kestrel 1000 Meter Oct 31, 2020 Wind Speed is a critical reading to have for many people. Additionally, NV backlights are also much dimmer than a standard backlight, making it more difficult to detect with the naked eye in night operations. Field Humidity Calibration/Correction Routine, High Contrast, Sunlight Readable Monochrome LCD Display, Temperature Sensor (Patented External Isolated), Waterproof to IP67 (3'/1M for 30 minutes), Start with a known; either current barometric pressure or current altitude. * NOTE: Accuracy calculated as uncertainty of the measurement derived from statistical analysis considering the combined effects from primary sensor specifications, circuit conversions, and all other sources of error using a coverage factor of k=2, or two standard deviations (2Σ). Historical Information on the Kestrel 4000 . Kestrel 4000 series displays pressure trend through graphing function. The Kestrel 3500 scrolls through the current readings of nine different … We ship globally! To avoid inaccurate Evaporation Rate readings due to thermal loading it is best to shade the Kestrel. The Kestrel 3500 provides comprehensive environmental measurements with the simplicity of the Kestrel 1000. Polymer capacitive humidity sensor mounted in thin-walled chamber external to case for rapid, accurate response (US Patent 6,257,074). Air pressure that would be present in identical conditions at MSL. If there is a strong breeze, just point the Kestrel into the wind. JavaScript seems to be disabled in your browser. The Altitude measurement displays the local altitude using the Station Pressure measurement combined with the Reference Baro value input by the user. 2-axis solid-state magnetoresistive sensor mounted perpendicular to unit plane. The Kestrel 3500 pocket weather meter is a rugged, multi-function wind and weather meter that measures all the environmental variables, including wind speed, that you need to calculate accurate ballistic solutions and train your environmental insight at the range. (Note: This backlight appears soft greyish pink, not "red", and is still in the visible spectrum which makes it not compatible with night-vision equipment.). From Australia. For military, or any night-time use, the Olive Drab NV version of the Kestrel 3500 features a night-vision preserving backlight which helps in sustaining natural light. Don’t settle for an Asian-made weather meter of questionable accuracy – step up to Kestrel for guaranteed accuracy and reliability that’s designed and built in the USA. Battery life reduced by backlight use in 2000 to 3500 models. Kestrel 1000 Description. Wind speed calibration and testing should be done with triangle on impeller located at the top front face of the Kestrel. This rugged and affordable meter provides a complete range of reliable weather measurements. Even in an open area, Wind speed will be slower near the ground so ensure you are taking measurements at an appropriate height for your application. Concrete mix temperature is generally measured with a probe or infrared thermometer and should be read at the time of making the evaporation rate measurement After inputting the mix temperature, hold the unit vertically, approximately 20 inches above the surface of the concrete while facing the rear of the unit directly into the wind. Browse our latest Anemometers offers. Kestrel-3500 - Waterproof Pocket Wind Meter. Perceived temperature resulting from the combined effect of temperature and relative humidity. To measure an average Evaporation Rate, scroll right from the Evaporation Current Measurement Screen to the Min/Ave/Max Screen and press select to manually start and stop a capture. Constructed from impact resistant and corrosion proof materials, the Kestrel 3500 anemometer is ideal for outdoor enthusiasts, engineers and even the emergency services. Calibration drift negligible. PSI display on Kestrel 4000 series only. The Kestrel 3500 weather meter is a pocket sized rotating vane anemometer with built-in temperature, humidity and barometric pressure sensors. The Kestrel 3500 Weather Meter is designed as a full weather meter that has the ability to measure environmental variables such as temperature, wind speeds, barometric phenomena, pressure trends of up to 3 hours, and more. Barometric Pressure vs. Station Pressure: What's the Difference? One reason your Kestrel may not be reading accurate ambient humidity is because of proximity to humidity sources such as your hand, your body or the ground. 00. A trend arrow displays whether the pressure is rising, … For more info check out our YouTube video on Setting Reference Pressure and Reference Altitude on the Kestrel 4000 series! Kestrel 4200 displays station pressure on a dedicated screen. The ACI recommends taking a 6-10 second average of the evaporation rate to account for fluctuating wind speeds. Reflective 5 digit LCD. A hard slide-on case, lanyard, and battery are also included. Using a Kestrel Vane Mount will ensure the unit is correctly oriented into the wind and measuring accurate wind speeds. Certificate of Conformity for the Kestrel 1000-3500DT with SNs above 2262687, Product Safety and Warranty Kestrel 5000 Series, EMC DECLARATION OF CONFORMITY 2500, 2500NV, 3500, 3500NV, User Guide for the Kestrel 1000 , 2000 , 2500 & 2500 NV , 3000 , 3500 & 3500 NV , 3500 DT. If the Reference Barometric pressure value is incorrect, the Altitude reading will also be incorrect. If the humidity sensor housing (located above the rear label) is wet, the Kestrel cannot take an accurate humidity reading. Hold the back of the unit directly into the wind. Even a short burst of white, yellow, green or blue light “bleaches out” the rod cell photoreceptors in the eye and causes night blindness until the entire adaptation process can take place again. The system comes … If your unit has a Humidity recalibration function, it can be returned to the factory or used with the Kestrel RH Calibration Kit to recalibrate its humidity readings. Requires accurate reference altitude to produce maximum absolute accuracy. It has an external temperature sensor with a waterproof casing that allows you to gauge the temperature of water, snow, and the open air. Hermetically sealed, precision thermistor mounted externally and thermally isolated (US Patent 5,939,645) for rapid response. The Kestrel 3500 Weather Meter has all the capabilities of the Kestrel 3000, plus additional key features: In addition to the pressure trend indicator, the Kestrel 3500 also has the advantage of altitude and barometric pressure measurements. From environmental conservation, marine and ocean research to cave research and scientific expeditions, the Kestrel 3500 makes gathering real-time data simple. This rugged and affordable meter provides a complete range of reliable weather measurements. The Kestrel 3500 also offers Barometric Trend. Reflective 3 1/2 digit LCD. Last one. Would you like your product laser engraved? The Kestrel 3500 … Unlike best practices for other measurements, WBGT is intended to be taken in direct sunlight. It takes 30 to 45 minutes for the average eye to adapt to darkness and maximize night vision. This allows the unit to provide a value that is more representative of the typical, ambient conditions but not capture peak speeds for instantaneous blasts of air. To achieve stated accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and be kept out of direct sunlight. Many users will inadvertently tilt the Kestrel Meter away from themselves slightly when holding the unit. KestrelMeters.com.au and is the sole importer and exclusive distributor of Kestrel … Station pressure compensated for local elevation provided by reference altitude. Get every environmental condition in seconds with the reliable Kestrel 3500.
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