🌟 881W Portable WBGT Heat‑Stress Anemometer

Multi‑function handheld meter for wind speed, ambient temperature, relative humidity and WBGT (Wet‑Bulb Globe Temperature) heat‑stress index. Supports indoor / outdoor WBGT mode, audible & visual heat‑stress alarm, MAX/MIN recording, color‑changing backlight. Great for workplace heat risk assessment, construction sites, sports events, military training, foundry and mining operations.

The 881W WBGT anemometer monitors wind speed together with environmental temperature and humidity, calculating WBGT index to evaluate heat‑stroke risk in hot working and activity environments. It features adjustable WBGT alarm threshold, buzzer alert and red warning backlight when heat risk is exceeded. Multiple wind‑speed units are selectable; stores MAX / MIN measured values for quick reference. Powered by common AAA batteries, compact and lightweight for field‑site use.

✅ Key Features At A Glance

  • 🌬️ Multi‑Unit Wind Speed Measurement Supports m/s, km/h, mph, knots, ft/min. Real‑time, MAX & MIN value memory for wind readings.
  • 🥵 WBGT Wet‑Bulb Globe Temperature Heat‑Stress Monitoring WBGT range: 0‑50℃. Switch between Indoor / Outdoor working mode. Four‑level heat risk indication: Caution, High Caution, Danger, Extreme Danger for heat‑stroke risk evaluation.
  • 🌡️ Ambient Temperature & Humidity Sensing Temp range: 0‑50 ℃ (℃ / ℉ switchable); Humidity: 0.1‑99.9 % RH. Read both values simultaneously on LCD screen.
  • 🔔 Audible & Visual WBGT Heat‑Stress Alarm Custom‑set WBGT alarm threshold from 20‑50 ℃. Buzzer beep alert; backlight changes from green to red when alarm triggers, even if backlight was turned off.
  • 📺 Adjustable LCD backlight; clear multi‑section screen layout, shows wind / WBGT, temperature and humidity all at once.
  • 🎛️ Intuitive button layout: unit switch, MAX/MIN recall, indoor‑outdoor toggle, alarm value setting.
  • 🪶 Lightweight handheld design, battery‑powered for field, outdoor and workplace spot checks.

📋 Technical Specifications

ItemSpecification
Wind Speed Units & Ranges0‑30 m/s; 0‑90 km/h; 0‑65 mph; 0‑55 knots; 0‑5860 ft/minAccuracy: ±5%
Ambient Temperature0‑50 ℃, resolution 0.1 ℃/℉, accuracy ±0.6 ℃ / ±3 ℉
Relative Humidity0.1‑99.9 % RH, resolution 0.1%RHAccuracy: ±5%RH(10‑90%RH @25℃), ±7%RH outside range
WBGT Measurement Range0‑50 ℃
WBGT Alarm Setting Range20‑50 ℃
WBGT Stabilization Time15‑25 minutes
DisplayMulti‑segment LCD, green / red warning color‑change backlight
Power Supply2 × AAA batteries
Operating Condition0‑50 ℃, RH＜80%
Storage Condition‑20‑50 ℃, RH＜90%
Dimensions208.33 × 52 × 40 mm
Net Weight137.3 g

WBGT Risk Reference Threshold:

  • Caution: 26.7‑29.4 ℃
  • High Caution: 29.4‑31 ℃
  • Danger: 31‑32.2 ℃
  • Extreme Danger: >32.2 ℃

🎛️ Main Button Functions

  • WIND: Cycle through wind‑speed measurement units
  • MAX/MIN: Toggle real‑time / maximum / minimum wind‑speed reading
  • MODE: Switch main display between Wind Speed and WBGT index
  • ℃/℉: Toggle temperature unit Celsius / Fahrenheit
  • Alarm / Backlight: Short press to toggle WBGT buzzer alarm; long press to turn LCD backlight ON/OFF
  • OUT / IN: Switch WBGT Indoor / Outdoor measurement mode
  • SET: Enter WBGT alarm threshold setting
  • Up / Down: Adjust alarm set‑point value
  • Power Key: Power ON / OFF the meter

👷 Suitable Applications

  • Industrial workplace heat‑stress risk monitoring: foundry, brick plant, glass factory, boiler room, mine site
  • Outdoor sports: marathon, beach events, outdoor training
  • Military field training & heat‑illness prevention
  • Construction site heat safety inspection
  • Indoor factory thermal environment assessment

⚠️ Important Notes

  1. Allow 15‑25 minutes stabilization time for accurate WBGT readings after power‑on.
  2. Replace AAA batteries promptly when low‑battery icon appears on LCD. Observe battery polarity during installation.
  3. This device evaluates relative heat‑stress risk, it cannot replace professional medical assessment.
  4. For WBGT measurement, select correct IN(indoor) / OUT(outdoor) mode to avoid measurement deviation.
  5. Store instrument in dry environment, avoid heavy impact and water exposure.

📦 Package Contents

  • 1 × 881W Hand‑held WBGT Heat‑Stress Anemometer
  • 1 × User Manual
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