{"product_id":"ecowitt-wn38-black-globe-thermometer-wet-bulb-globe-temperature","title":"Ecowitt WN38 Black Globe Thermometer, Wet Bulb Globe Temperature","description":"\u003cp\u003eThe WN38 Black Globe Thermometer measures and displays the black globe temperature only, which can be viewed on screen (see sensor matrix), through the Ecowitt app or website..\u003c\/p\u003e\n\u003cp\u003eThe WN38 is a professional, wireless black globe temperature sensor designed for long-term outdoor monitoring. Its core value lies in accurately measuring \"perceived temperature,\" and based on this, combining with your weather station data to provide the WBGT (Wet Bulb Globe Temperature) index, which directly evaluates the heat stress imposed by the environment on the human body.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTo display WBGT (Wet Bulb Globe Temperature) data in the app, the WN38AE must be used together with an Ecowitt outdoor temperature and humidity sensor\u003c\/strong\u003e from either an outdoor array (WS69, WS90 etc) or the WN32 outdoor sensor.\u003c\/p\u003e\n\u003cp\u003eThe collected data can be transmitted via an Ecowitt Wi-Fi Gateway or displayed on a compatible receiver console (both sold separately). Once Wi-Fi configuration is completed, data can be viewed in real time through the Ecowitt app, WS View Plus app, or on the receiver console. \u003ca href=\"https:\/\/www.ecowitt.net\/home\/share?authorize=8Q5GRS\u0026amp;device_id=TGxkRi85Y3QrRCtIVlU0RFBhRktEZz09\" title=\"Demonstration WN38 Black Globe thermometer website\" rel=\"noopener\" target=\"_blank\"\u003eOur demonstration WN38 sensor can be seen here paired with a WittBoy Pro (HP2564) which went online 26th May 2026.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrass with a matte black coating on the surface, standard size, perfectly simulates human heat absorption \u003c\/li\u003e\n\u003cli\u003eLED display for current reading\u003c\/li\u003e\n\u003cli\u003eIP66 sealed globe sensor\u003c\/li\u003e\n\u003cli\u003eConfigure for use with Ecowitt\u003cmeta charset=\"utf-8\"\u003e gateway or consoles (only TFT console displays data on screen)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOnly 1 WN38 supported by each Console or gateway\u003c\/li\u003e\n\u003cli\u003eUpload data to the Ecowitt weather server to view history graphs and download the data from the website\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSurface, pole or wall mountable\u003c\/li\u003e\n\u003cli\u003e868MHz UK and European frequency (AE suffix)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eIncludes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 x WN38A Black globe thermometer\u003c\/li\u003e\n\u003cli\u003e1 x Mounting bracket\u003c\/li\u003e\n\u003cli\u003e1 x User Manual\u003c\/li\u003e\n\u003cli\u003e2 x U-Bolts for mounting on a pole\u003c\/li\u003e\n\u003cli\u003e4 x Threaded nuts for U-Bolts (M6 size)\u003c\/li\u003e\n\u003cli\u003e1 x SUS304 M3*12 Screw (horizontal installation)\u003c\/li\u003e\n\u003cli\u003e1 x SUS304 M3*24 Screw (vertical installation)\u003c\/li\u003e\n\u003cli\u003e4 x PA4.8×32 Screws (vertical installation) \u003c\/li\u003e\n\u003cli\u003e1 x L-shaped Hex Wrench\u003c\/li\u003e\n\u003cli\u003e1 x 8 mm Single-Head Wrench (Carbon Steel) \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTechnical \u0026amp; Manual\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003eBlack globe diameter\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003eφ60 mm\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eBlack globe material\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003eBrass with a matte black surface coating\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eWaterproof Rating\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003eIP66\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eTemperature Range\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e-40°C to 125℃ (-40℉ to 257℉)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eTemperature Accuracy\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e±1℃ (±1.8℉)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eTemperature Resolution\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e0.1℃ (0.2℉)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransmission distance in open field: 100 meters (300 feet)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range of LCD Screen\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e-10°C to 50°C(14℉ to 122℉)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range of the Plastic Casing\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e-40°C to 60°C(-40℉ to 140℉)\u003c\/li\u003e\n\u003cli\u003eIP66 rated sensor transmitter and probe sensor\u003c\/li\u003e\n\u003cli\u003e868MHz UK \/ European frequency\u003c\/li\u003e\n\u003cli\u003eSensor reporting interval: 60 seconds\u003c\/li\u003e\n\u003cli\u003eMay require console or gateway firmware update as a new sensor\u003c\/li\u003e\n\u003cli\u003ePower: 1 x AA 1.5V LR6 Alkaline battery estimated 12 months use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA copy of the WN38 manual is \u003ca rel=\"noopener\" title=\"WN38 black globe thermometer manual\" href=\"https:\/\/oss.ecowitt.net\/uploads\/20251128\/WN38AN-UserManual.pdf\" target=\"_blank\"\u003eavailable here for viewing.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Ecowitt","offers":[{"title":"Default Title","offer_id":56436667613562,"sku":"ECOWWN38","price":49.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0118\/0375\/4592\/files\/9_f04b0b34-6cf4-4b2b-bd55-ac61e24e5d03_jpg-compressed.webp?v=1779125413","url":"https:\/\/www.weatherspares.co.uk\/products\/ecowitt-wn38-black-globe-thermometer-wet-bulb-globe-temperature","provider":"Weather Spares®","version":"1.0","type":"link"}