Every Kestrel Meter features a large, 1” impeller mounted on a sapphire jewel bearing, which means it starts rotating with the slightest puff of air. For superior accuracy, the impeller housing can rotate in the unit. The patented impeller is user-replaceable by simply pushing it out with your thumbs, which means it can easily be replaced if it is damaged or worn. The measurements from the wind impeller are taken magnetically. The impeller is not glued or attached to the unit. Because every new impeller is calibrated in the wind tunnel at the USA factory, if your application demands regular calibration, simply pop in a new impeller and the Kestrel Wind Meter is restored to like-new factory calibration standards. Perceived temperature resulting from combined effect of wind speed and temperature. 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. Measurement range limited by extent of published tables.

Kestrel KESTREL 1000 Rotary Vane Anemometer, 40m/s Max

While most weather meters are all built the same, some may offer different functionality. One common feature added to these devices is temperature. Some, like those used in firefighting, might also include a humidity sensor. Wrapping Up If you’re considering a Kestrel weather meter, we’d strongly recommend models with LiNK connectivity. The free Kestrel LiNK app gives you full access to advanced tools, including shareable reports, custom display options, threshold alerts, snapshot capture, and data visualization. The app is available for both Android and iOS operating systems. Frequently Asked Questions The wind speed displayed is a 3 second rolling average. This allows the unit to provide a value that is more representative of the typical, ambient conditions rather than peak speeds for instantaneous blasts of air. The Kestrel 1000 handheld wind speed meter (anemometer) is a simple, reliable and extremely accurate air velocity measurement device delivering current, average and maximum wind speed readings, you can easily change between mph, km/h, ft/min, m/s, knots and Beaufort. This is the meter of choice for crane operators and water sports enthusiasts alike.

Kestrel 5 Series Troubleshooting Documents

The Kestrel 3500 is the most powerful of the Kestrel 3000 series, measuring temperature, wind speeds, barometric... The Kestrel 1000 (0810) hand held anemometer wind meter is easy to use, robust, reliable and accurate. Measures current wind speed, maximum wind speed and average wind speed. Temperature indicated by a sling psychrometer. Due to nature of the psychrometric ratio for a water-air system, this approximates the thermodynamic wet-bulb temperature. 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.

Kestrel 1000 Pocket Wind Meter | Tempcon Instrumentation

Height above Mean Sea Level ("MSL"). Temperature compensated pressure (barometric) altimeter requires accurate reference barometric pressure to produce maximum absolute accuracy. Both accuracy specs corresponds to a reference pressure anywhere from 850 to 1100 mBar. However, a candidate for the Best Handheld Weather Station of 2022 can’t only be a great value: it must have accurate measurements, be user-friendly, and have excellent build quality. Our review staff has years of experience using handheld weather stations and instruments: some of us are degreed meteorologists and scientists. Our writers independently research each device: we do not recommend a device simply because a manufacturer sends it to us. Our Handheld Weather Station Test Results Image Credit: Kestrel The Kestrel 1000 might only measure wind, but we feel it’s a much better option (and more accurate) than the BTMeter BT-100. Which handheld weather station is the most durable? Ultra-low dark current and read-noise – Resulting in the highest sensitivity SWIR camera on the market Convenient and reliable, the Kestrel 1000 is the perfect tool for model plane pilots, kite surfers, DZSO (Drop Zone Safety Officers) and other outdoor enthusiasts who rely on accurate wind speed information. It is is also ideal for farming & agriculture, crane operators and event riggers. Kestrel 1000 Anemometer Key FeaturesTop 10 Lists Our Top 10 lists count down the warmest, wettest, and snowiest places around, and explain what drives the weather in these locales. 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. inch|25 mm diameter impeller with precision axle and low-friction Zytel® bearings. 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. Off-axis accuracy -1% @ 5º off-axis; -2% @ 10º; -3% @ 15º. Calibration drift < 1% after 100 hours use at 16 MPH | 7 m/s. Replacement impeller (NK PN-0801) field installs without tools (US Patent 5,783,753). Wind speed calibration and testing should be done with triangle on impeller located at the top front face of the Kestrel. *F/S only in Ballistics units. Beaufort not available in Ballistics units. Hermetically sealed, precision thermistor mounted externally and thermally isolated (US Patent 5,939,645) for rapid response. Airflow of 2.2 mph|1 m/s or greater provides fastest response and reduction of insolation effect. Calibration drift negligible. 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.

Kestrel Instruments USER GUIDE - Kestrel Instruments

While not as accurate, the Ambient Weather WM-5 still performs well and is much cheaper than its Kestrel counterpart, the 3500. BTMeter’s large margin of error (+/- 5%) really hurt the BT-100’s overall score in this category. Important! The accuracy of handheld weather stations is dependent on proper use. Read your owner’s manual first to ensure you’re using the device properly! One-button clear and restart of Max Wind Gust and Average Wind measurement by powering down and restarting unit. Difference between dry bulb temperature and wet bulb temperature. When spraying, indicates evaporation rate and droplet lifetime. Safe range for pesticide spraying is 4 to 16 °F / 2 to 9 °C.Air pressure that would be present in identical conditions at MSL. Station pressure compensated for local elevation provided by reference altitude. Requires accurate reference altitude to produce maximum absolute accuracy Firmware features including 3-point NUC, ALPD functionality, image flip, crosshair, edge and contrast enhancement