{"title":"Instruments which measure Wind Direction","description":"","products":[{"product_id":"kestrel-5500-weather-environmental-meter","title":"Kestrel 5500 Pocket Weather Meter \/ Station","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003eKestrel 5500 Weather Meter\u003c\/span\u003e\u003cspan\u003e is a professional-grade handheld weather instrument designed to provide accurate, reliable environmental information wherever you need it. Compact, rugged, and easy to use, the Kestrel 5500 combines a wide range of weather measurements in one durable instrument, making it an excellent choice for outdoor professionals, hunters, hikers, campers, weather enthusiasts, and anyone who needs dependable weather data in the field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/files\/BD86D905-0B3B-4792-AFC2-9A7D779F153A_240x240.jpg?v=1789141875\" style=\"margin: 15px 15px 15px 15px;float: left;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eThe Kestrel 5500 measures \u003c\/span\u003e\u003cspan\u003ewind speed, temperature, relative humidity, barometric pressure, and altitude\u003c\/span\u003e\u003cspan\u003e, while calculating important environmental conditions including \u003c\/span\u003e\u003cspan\u003eheat index, dew point, wind chill, wet bulb temperature, density altitude, and more\u003c\/span\u003e\u003cspan\u003e. With these measurements available in a single handheld meter, you can quickly monitor changing conditions without carrying multiple instruments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt for demanding outdoor environments, the Kestrel 5500 features a \u003c\/span\u003e\u003cspan\u003erugged, waterproof, and drop-tested design\u003c\/span\u003e\u003cspan\u003e. Its large, easy-to-read display and intuitive controls make it simple to access measurements and navigate through stored data. A built-in backlight provides improved visibility in low-light conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Kestrel 5500 also features \u003c\/span\u003e\u003cspan\u003edata logging and trend information\u003c\/span\u003e\u003cspan\u003e, allowing you to monitor changing environmental conditions over time. Minimum, maximum, and average readings can be stored and recalled, making it useful for both real-time weather monitoring and reviewing conditions after field activities.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Kestrel","offers":[{"title":"Yellow \/ Standard Non-LiNK","offer_id":8148904709,"sku":"0855YEL","price":379.0,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Bluetooth LiNK Enabled + Vane Mount","offer_id":8148820101,"sku":"0855LVYEL","price":449.0,"currency_code":"USD","in_stock":true},{"title":"Olive Drab \/ Standard Non-LiNK","offer_id":8148904965,"sku":"0855OLV","price":379.0,"currency_code":"USD","in_stock":true},{"title":"Olive Drab \/ Bluetooth LiNK Enabled + Vane Mount","offer_id":8148904901,"sku":"0855LVOLV","price":449.0,"currency_code":"USD","in_stock":true},{"title":"Desert Tan \/ Standard Non-LiNK","offer_id":8148904837,"sku":"0855TAN","price":379.0,"currency_code":"USD","in_stock":true},{"title":"Desert Tan \/ Bluetooth LiNK Enabled + Vane Mount","offer_id":8148904773,"sku":"0855LVTAN","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/products\/kestrel-5500-weather-metertanwith-link-vane-mount-case0855lvtanextrememeterscom-871259.jpg?v=1685902582"},{"product_id":"kestrel-elite-weather-meter-with-applied-ballistics","title":"Kestrel 5700 ELITE AB Weather Meter with Bluetooth LiNK","description":"\u003ch2\u003eKestrel's most complete ballistics calculator - a rugged Kestrel 5 Series Weather Meter with the science of accuracy built in!\u003c\/h2\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/files\/0857alblk_devices_small.jpg?14508568498892637679\" style=\"float: right; margin-top: 2px; margin-left: 2px; margin-bottom: 2px;\"\u003eThe Kestrel 5700 Elite Weather Meter features the full power of the Applied Ballistics Elite ballistics solver along with the Litz custom drag models for over 500 bullets. Together with the Kestrel's accurate measurement of wind and air density this power combination delivers elevation and windage solutions for unprecedented accuracy on extended long range shots.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eEasy Mode \u003c\/i\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eEasy Mode is a simplified version of Ballistics mode with additional guidance for users new to using the Kestrel.\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eGun Storage Capacity\u003c\/i\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEasily store up to 30 custom gun profiles, up from 16, that include an exhaustive list of rifles, loads and accessories to choose from.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eTrace Spotting\u003c\/i\u003e\u003c\/strong\u003e\u003cbr\u003eView the new Trace value directly on Range Card for a more precise measurement option. The Trace calculation will display the Mils\/MOA above your point of aim where the bullet will reach its peak and thus Trace will be most visible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eOptional Privacy Setting\u003c\/i\u003e\u003c\/strong\u003e\u003cbr\u003eWith the addition of a Privacy PIN code in the Bluetooth menu, unauthorized and accidental connections can be prevented. Plus, protect saved data and enjoy increased security by using this Privacy setting in the Kestrel Ballistics LiNK app.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ec0000;\"\u003e\u003cstrong\u003e\u003ci\u003eCustom Drag Model Memory\u003c\/i\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eKeep Custom Drag Models saved in profile memory with the ability to seamlessly scroll to G1 or G7 models and back to custom without losing data.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eExpanded Bullet Library\u003c\/i\u003e\u003c\/strong\u003e\u003cbr\u003eAccess new and updated information in the Applied Ballistics bullet library via the Kestrel LiNK Ballistics app for an extensive catalogue of bullet data.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eSaved User Name\u003c\/i\u003e\u003c\/strong\u003e\u003cbr\u003eAfter a firmware update, your Kestrel will now retain the user-generated nickname given to it, making it easier to find in Bluetooth search lists.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ci\u003eShortcut between Weather \u0026amp; Ballistics Mode\u003c\/i\u003e\u003c\/strong\u003e\u003cbr\u003eQuickly switch between Weather and Ballistics mode with a simple double-tap action. With this update you’ll now return to the same ballistics screen you were on before switching to weather mode.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWhat are custom drag profiles and why are they better than G1 \u0026amp; G7 BC's?\u003c\/h3\u003e\n\u003cp\u003eApplied Ballistics has been providing custom drag models for use in trajectory prediction for the past several years. Custom Drag Models (CDM’s) for bullets are a more refined way of modeling drag for bullets because you’re not referencing a standard like G1 or G7, rather you’re using the actual measured drag of a specific bullet in a ballistic solver. This results in more accurate trajectory predictions especially thru transonic.\u003c\/p\u003e\n\u003cp\u003eHistorically, one of the biggest challenges of calculating accurate trajectories was properly modeling the aerodynamic drag of bullets. Applied Ballistics ongoing live fire research in this area has elevated the state of the art by reducing the uncertainty in this area.  \u003c\/p\u003e\n\u003cp\u003eIn summary, the measured CDM’s provided by Applied Ballistics have increased the accuracy of ballistic solvers.  These CDM’s are available for all 500+ bullets in the AB library, and run on the various platforms and devices which run the AB program.  This is the state of the art, in your hands.\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003cblockquote\u003e\n\u003cdiv\u003e\n\u003cp\u003eKestrels have been put to the test in some of the harshest conditions on the planet. U.S. Special Forces, combat weather teams, wildland firefighters, smoke jumpers, Mt. Everest expeditions and auto pit crews are just a few who rely on a Kestrel to provide them with the crucial environmental data they need. Watch any on-screen meteorologist during a hurricane, and you’re sure to spot a Kestrel in action. With a Kestrel 5700, you can put accurate shooting solutions and environmental measurements in the palm of your hand, anywhere your adventure takes you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/files\/flag2_480x480.jpg?v=1584837411\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNSN Number: 6660016540064\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eEnvironmental Measures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eApplied Ballistics Custom Drag Models\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eApplied Ballistics G1\/G7\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/wind-speed\" title=\"Kestrel Meters which measure wind speed\"\u003eCurrent wind speed\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/wind-speed\" title=\"Kestrel Meters which measure wind speed\"\u003eAverage wind speed\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/wind-speed\" title=\"Kestrel Meters which measure wind gust\"\u003eMaximum wind gust\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/kestrel-meters-which-measure-wind-direction\" title=\"Weather Meters which measure wind direction\"\u003eWind Direction \/ Crosswind \/ Headwind\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/barometric-pressure\" title=\"Kestrel Meters which measure barometric pressure\"\u003eBarometric pressure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/pressure-trend\" title=\"Kestrel Instruments which measure pressure trend\"\u003ePressure trend\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/altitude\" title=\"Kestrel Meters which measure altitude\"\u003eAltitude (Pressure Based)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/relative-humidity\" title=\"Kestrel Instruments which measure relative humidity\"\u003eRelative humidity\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/heat-stress-index\" title=\"Kestrel Meters which measure heat stress index\"\u003eHeat stress index\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/dew-point\" title=\"Kestrel Instruments which measure dew point\"\u003eDew point\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/wet-bulb-temperature-psychrometric\" title=\"Kestrel Meters which measure wet bulb temperature\"\u003eWet Bulb Temperature (Psychrometric)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/kestrel-meters-which-measure-density-altitude\" title=\"Kestrel Instruments which measure density altitude\"\u003eDensity Altitude\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/wind-chill\" title=\"Kestrel Meters which measure wind chill\"\u003eWind Chill\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-th\/collections\/temperature\" title=\"Kestrel Instruments which measure air, snow, water temperature\"\u003eAir, water, and snow temperature\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eFeatures\u003c\/h6\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBacklight - Switchable White\/Red\u003c\/li\u003e\n\u003cli\u003eBallistics Calculator - Applied Ballistics®\u003c\/li\u003e\n\u003cli\u003eBattery Life Indicator\u003c\/li\u003e\n\u003cli\u003eData Log Graph View\u003c\/li\u003e\n\u003cli\u003eData Logging - Adjustable Interval\u003c\/li\u003e\n\u003cli\u003eDate \u0026amp; Time\u003c\/li\u003e\n\u003cli\u003eDigital Compass\u003c\/li\u003e\n\u003cli\u003eDrop-Tested to MIL-STD-810G\u003c\/li\u003e\n\u003cli\u003eFloats\u003c\/li\u003e\n\u003cli\u003eHigh Contrast, Sunlight Readable Monochrome LCD Display (your extrememters.com purchased Elite will come with a installed screen protector).\u003c\/li\u003e\n\u003cli\u003eIntegrated Flip Open Impeller Cover\u003c\/li\u003e\n\u003cli\u003eMultilingual Menus (English, French, Spanish, German)\u003c\/li\u003e\n\u003cli\u003eMinimum\/Maximum\/Average Reading\u003c\/li\u003e\n\u003cli\u003ePressure Sensor\u003c\/li\u003e\n\u003cli\u003eRelative Humidity Sensor\u003c\/li\u003e\n\u003cli\u003eTemperature Sensor (Patented External Isolated)\u003c\/li\u003e\n\u003cli\u003eWaterproof to IP67 (3'\/1M for 30 minutes)\u003c\/li\u003e\n\u003cli\u003eAdvanced Ballistics Data table\u003c\/li\u003e\n\u003cli\u003eAerodynamic Jump Correction\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApplied Ballistics Custom Drag Models\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAverage and Peak Wind Correction\u003c\/li\u003e\n\u003cli\u003eCoriolis Correction\u003c\/li\u003e\n\u003cli\u003eCreate and store 5 Targets\u003c\/li\u003e\n\u003cli\u003eCreate and store up to 30 Gun\/Bullet Profiles\u003c\/li\u003e\n\u003cli\u003eG1\/G7 Drag Models\u003c\/li\u003e\n\u003cli\u003eHigh Angle Shot Correction\u003c\/li\u003e\n\u003cli\u003eIntegrated Applied Ballistics Calculator\u003c\/li\u003e\n\u003cli\u003eMoving Target Lead Correction\u003c\/li\u003e\n\u003cli\u003eMuzzle Velocity Calibration\u003c\/li\u003e\n\u003cli\u003eMV-Temp Table\u003c\/li\u003e\n\u003cli\u003eRange Card\u003c\/li\u003e\n\u003cli\u003eSpin Drift Correction\u003c\/li\u003e\n\u003cli\u003eSupports Mil, MOA, Clicks\u003c\/li\u003e\n\u003cli\u003eSubsonic Range Drop Scale Factor Calibration\u003c\/li\u003e\n\u003cli\u003eStandard and Night Vision Preserving Backlight\u003c\/li\u003e\n\u003cli\u003eTarget Range Estimator\u003c\/li\u003e\n\u003cli\u003eZero Offset\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eWhat's in the box?\u003c\/h6\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKestrel 5700 Elite Ballistics Weather Meter with LiNK\u003c\/li\u003e\n\u003cli\u003eNeck Lanyard\u003c\/li\u003e\n\u003cli\u003eAA Lithium Battery (Average Life 400 Hours)\u003c\/li\u003e\n\u003cli\u003eProtective Drawstring Pouch\u003c\/li\u003e\n\u003cli\u003eCertificate of Conformity (with complete specifications)\u003c\/li\u003e\n\u003cli\u003eInstruction Manual\u003c\/li\u003e\n\u003cli\u003e5-Year Warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kestrel","offers":[{"title":"Tan","offer_id":31319101112377,"sku":"0857ALTAN","price":769.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":46789098045663,"sku":"0857ALBLK","price":769.0,"currency_code":"USD","in_stock":true},{"title":"Olive","offer_id":46789098176735,"sku":"0857ALOLV","price":769.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":46789101256927,"sku":"0857ALORA","price":769.0,"currency_code":"USD","in_stock":true},{"title":"Flat Dark Earth","offer_id":46789101322463,"sku":"0857ALFDE","price":769.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/products\/kestrel-weather-meter-tan-free-case-special-included-kestrel-5700-elite-applied-ballistics-weather-meter-with-bluetooth-link-desert-tan-4869696618553.jpg?v=1635038643"},{"product_id":"kestrel-5500fw-fire-weather-meter-pro-with-link","title":"Kestrel 5500FW Fire Weather Meter Pro","description":"\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1.25em; font-size: 0.93em;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003cth style=\"padding: 8px 10px; text-align: left; border: 1px solid #ddd;\"\u003eOption\u003c\/th\u003e\n\u003cth style=\"padding: 8px 10px; text-align: left; border: 1px solid #ddd;\"\u003eBest for\u003c\/th\u003e\n\u003cth style=\"padding: 8px 10px; text-align: left; border: 1px solid #ddd;\"\u003eWhat's included\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStandard Non-LiNK\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003eCrews who log data manually or download via USB Data cable to a PC or MAC (available in our accessories section) — no wireless needed.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e5500FW meter + carry pouch. Data export via USB Data Transfer Cable (sold separately).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBluetooth LiNK Enabled\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003eFire weather observers who need real-time wireless data transfer to the free Kestrel LiNK app (Android) or PC via LiNK Dongle.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e5500FW meter with built-in Bluetooth LiNK + carry pouch. LiNK Dongle sold separately.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBluetooth LiNK + Vane Mount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003eUsers requiring hands-free, fixed-position wind direction readings — ideal for staging areas and incident command posts.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 10px; border: 1px solid #ddd;\"\u003e5500FW meter with Bluetooth LiNK + rotating vane mount + carry care.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eThis all-in-one hand-held belt weather kit replacement provides all essential weather metrics, including PIG and FDFM.\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMeasure, log, track trends and expand capabilities with free Kestrel LiNK App.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe fast and easy tool for taking weather observations The Kestrel 5500 Fire Weather Meter Pro provides NIST-traceable accuracy, reliability and usability when it matters most. Measure every environmental condition plus PIG and FDFM and view trends with on-screen data graphing. Drop-proof, dust-proof, waterproof and able to withstand extreme environments without damage, your Kestrel Fire Weather meter can stand up to the abuses of work on a fire line wherever you're assigned. A variety of carry pouch options makes it even easier to take your Kestrel Fire Weather meter with you. The Kestrel 5500 Fire Weather Meter Pro offers a large, high-resolution and contrast display and highly readable numerals. The Kestrel 5500 also includes a built-in dual color backlight, extra-strong poly-carbonate lens and single AA battery operation. In addition to measuring the current environmental conditions, the Kestrel 5500 FWM tracks and logs over 10,000 sets of time-stamped data, providing a complete history of conditions on the fire from the moment you arrive. With optional LiNK wireless connectivity, your data log can be transferred to a Kestrel LiNK app (available on Android) for easy export and email to an FBAN or meteorologist. Data can also be downloaded to a PC with either the accessory \u003cstrong\u003eKestrel LiNK Dongle\u003c\/strong\u003e or waterproof \u003cstrong\u003eUSB Data Transfer Cable\u003c\/strong\u003e (Both sold separately).\u003c\/p\u003e","brand":"Kestrel","offers":[{"title":"Standard Non-LiNK","offer_id":18635679621,"sku":"0855FWORA","price":389.0,"currency_code":"USD","in_stock":true},{"title":"Bluetooth LiNK Enabled","offer_id":42431427674335,"sku":"0855FWLORA","price":419.0,"currency_code":"USD","in_stock":true},{"title":"Bluetooth LiNK Enabled + Vane Mount","offer_id":18639531973,"sku":"0855FWLVORA","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0344\/1457\/products\/kestrel-5500fw-fire-weather-meter-prowith-link0855fwloraextrememeterscom-881242.jpg?v=1685904116"},{"product_id":"kestrel-5400fw-fire-weather-meter-pro-wbgt-with-link-compass-vane-mount","title":"Kestrel 5400FW Fire Weather Meter Pro","description":"\u003ch4\u003eThe Kestrel 5400FW Fire Weather Meter offers all the same measurements and capabilities as the standard Kestrel 5400 Heat Stress Tracker, making it ideal for athletic, occupational, and heat safety monitoring\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eAll this while also providing powerful additional tools specifically for wildland firefighting.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJust like the 5400, the 5400FW measures and reports temperature, humidity, wind speed, and WBGT (Wet Bulb Globe Temperature) for accurate heat stress and environmental monitoring in sports, military, and industrial settings.\u003c\/p\u003e\n\u003cp\u003eIn addition, the 5400FW includes advanced fire-weather features such as \u003cstrong\u003eFine Dead Fuel Moisture (FDFM)\u003c\/strong\u003e and \u003cstrong\u003eProbability of Ignition (PIG)\u003c\/strong\u003e — critical indices used by wildland firefighters to evaluate ignition risk and fire behavior potential in the field. The 5400FW now includes \u003cstrong\u003eVapor Pressure Deficit (VPD)\u003c\/strong\u003e. \u003cstrong data-start=\"77\" data-end=\"202\"\u003eVPD quantifies the gap between the moisture currently in the air and the maximum moisture the air can hold at saturation.\u003c\/strong\u003e This measurement reveals the atmosphere’s drying potential—one of the most important drivers of fuel moisture (FM). 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