{"product_id":"btmeter-bt-881w-heat-stress-meter-wbgt-anemometer-portable-indoor-outdoor-wbgt-wind-temp-humidity","title":"BTMETER BT-881W Heat Stress Meter WBGT Anemometer - Portable Indoor\/Outdoor WBGT, Wind\/Temp\/Humidity","description":"\u003cp\u003e\u003cstrong\u003eThe BTMETER BT-881W is a handheld WBGT heat stress meter that also measures wind speed, ambient temperature and humidity for indoor and outdoor environments.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and battery-powered, the BT-881W combines an anemometer and a Wet Bulb Globe Temperature (WBGT) monitor in one tool so you can assess heat stress, airflow and environmental conditions on the spot. It gives readable digital output with selectable units, a backlit display, and modes for indoor or outdoor WBGT, making it practical for fieldwork, HVAC checks, athletic events or workplace safety spot checks.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate and reliable is the BT-881W for measuring wind, temperature and humidity?\u003c\/h3\u003e\n\u003cp\u003eThe BT-881W uses upgraded sensors that deliver close tolerances for common environmental checks. Wind speed is accurate to about ±5%, temperature to ±0.6°C with 0.1° resolution, and humidity reads with 0.1% RH resolution, making it suitable for routine monitoring and troubleshooting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWind range: 0–30 m\/s with MAX\/MIN capture modes for gusts and averages.\u003c\/li\u003e\n  \u003cli\u003eTemperature range suitable for most work and recreation: - (operational range noted on device) with 0.1° display steps.\u003c\/li\u003e\n  \u003cli\u003eHumidity span: 0.1%–99.9% RH with fine resolution for precise readouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat measurements and modes does this device provide for heat-stress assessment?\u003c\/h3\u003e\n\u003cp\u003eBeyond basic air metrics, the BT-881W calculates WBGT and monitors black globe temperature to reflect radiant heat exposure. It supports separate indoor and outdoor WBGT modes and can be set to alarm when globe temperatures cross a defined threshold, helping identify hazardous heat conditions quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWBGT readout for combined heat, humidity and radiant effects.\u003c\/li\u003e\n  \u003cli\u003eBlack globe temperature (TG) monitoring with adjustable alarm range (20–50°C).\u003c\/li\u003e\n  \u003cli\u003eIndoor\/Outdoor mode selection to account for direct sunlight vs. shaded conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to use in the field and what unit options are available?\u003c\/h3\u003e\n\u003cp\u003eThe BT-881W is designed for straightforward operation: a one-button mode switch, data-hold function to freeze readings, and a backlit LCD for low-light work. It supports multiple unit choices and auto power management to conserve batteries during long deployments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive wind units: m\/s, ft\/min, knots, km\/h, mph for compatibility with regional preferences.\u003c\/li\u003e\n  \u003cli\u003eTwo temperature units (°C\/°F) and a quick data-hold feature for recording.\u003c\/li\u003e\n  \u003cli\u003eAuto power-off and a clear backlit screen for evening or dim conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat build quality and support come with the BT-881W?\u003c\/h3\u003e\n\u003cp\u003eBTMETER calibrates each unit prior to shipping and provides a one-year warranty plus lifetime technical assistance. The handheld housing and sensors are intended for routine field use—ideal for inspections and portable monitoring—while calibration ensures consistent results out of the box.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory calibration for dependable measurements straight away.\u003c\/li\u003e\n  \u003cli\u003e365-day warranty and ongoing technical support from the manufacturer.\u003c\/li\u003e\n  \u003cli\u003ePortable, battery-powered construction for on-site testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The BTMETER BT-881W suits technicians, safety officers, coaches, event organizers and outdoor workers who need concise, portable environmental readings. Use it for HVAC balancing, drone and equipment checks, industrial site safety, athletic event monitoring or any situation where wind, temperature, humidity and WBGT inform decisions about comfort and risk.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the BT-881W measure WBGT in direct sunlight?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it has an outdoor WBGT mode and monitors black globe temperature to account for radiant heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which units can I use for wind and temperature?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Wind: m\/s, ft\/min, knots, km\/h, mph. Temperature: Celsius or Fahrenheit selectable.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BTMETER","offers":[{"title":"Default Title","offer_id":56824624906580,"sku":"B09WMQTFKD","price":63.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/btmeter-bt-881w-front-panel.jpg?v=1786985215","url":"https:\/\/gardenluxe.co.uk\/products\/btmeter-bt-881w-heat-stress-meter-wbgt-anemometer-portable-indoor-outdoor-wbgt-wind-temp-humidity","provider":"Gardenluxe Uk","version":"1.0","type":"link"}