---
product_id: 448689010
title: "BT-881W Heat Stress Meter Anemometer, Digital Indoor/Outdoor WBGT (Wet Bulb Globe Temperature) Meter with Wind Speed, Ambient Temp, Humidity Tester"
brand: "btmeter"
price: "VT15237"
currency: VUV
in_stock: true
reviews_count: 12
category: "Btmeter"
url: https://www.desertcart.vu/products/448689010-bt-881w-heat-stress-meter-anemometer-digital-indoor-outdoor-wbgt
store_origin: VU
region: Vanuatu
---

# 0.1%RH humidity resolution 0~30 m/s wind speed range ±0.6°C temp accuracy BT-881W Heat Stress Meter Anemometer, Digital Indoor/Outdoor WBGT (Wet Bulb Globe Temperature) Meter with Wind Speed, Ambient Temp, Humidity Tester

**Brand:** btmeter
**Price:** VT15237
**Availability:** ✅ In Stock

## Summary

> 🌟 Stay cool, stay safe — master the heat stress game with precision!

## Quick Answers

- **What is this?** BT-881W Heat Stress Meter Anemometer, Digital Indoor/Outdoor WBGT (Wet Bulb Globe Temperature) Meter with Wind Speed, Ambient Temp, Humidity Tester by btmeter
- **How much does it cost?** VT15237 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/448689010-bt-881w-heat-stress-meter-anemometer-digital-indoor-outdoor-wbgt)

## Best For

- btmeter enthusiasts

## Why This Product

- Trusted btmeter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant WBGT Alerts:** Real-time black globe temperature alarms protect your team from dangerous heat exposure.
- • **Versatile Unit Options:** Customize measurements with 5 air velocity units & Celsius/Fahrenheit temp settings for global use.
- • **Dual Indoor/Outdoor Modes:** Smart switching for reliable data whether you’re in the office, on-site, or outdoors.
- • **Precision Heat & Air Monitoring:** Accurate WBGT, wind speed, temp & humidity readings keep you ahead of heat stress risks.
- • **Compact & Calibrated Reliability:** Portable, factory-calibrated device with backlit LCD and 1-year warranty—engineered for pros on the move.

## Overview

The BTMETER BT-881W is a professional-grade digital heat stress meter and anemometer that measures Wet Bulb Globe Temperature (WBGT), wind speed (0-30 m/s), ambient temperature (±0.6°C accuracy), and humidity (0.1% resolution). Designed for indoor and outdoor use, it features real-time WBGT alarms, multiple unit options, and a backlit LCD display. Compact and factory-calibrated, it’s ideal for HVAC maintenance, outdoor sports, industrial safety, and environmental monitoring, backed by a 1-year warranty.

## Description

Buy BTMETER BT-881W Heat Stress Meter Anemometer, Digital Indoor/Outdoor WBGT (Wet Bulb Globe Temperature) Meter with Wind Speed, Ambient Temp, Humidity Tester: Wind Speed Gauges - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: good tool for the price. - Works like It should, well built and readings seem to be accurate.
Review: Not very accurate - Nice compact meter, but it is not very accurate compared to an actual WBGT meter

## Features

- 💖【Multifunctional】Not Just a digital anemometer, but also a handheld heat stress meter to check black ball temperature, ambient temperature and humidity. One-button to switch it into an anemometro or heat stess monitor mode.BT-881W could measure windspeed 0~30m/s, test wind temperature 0~50℃，monitor relative humidity 0.1%~99.9%RH, check WBGT temperature 32~122°F(Celsius Fahrenheit Switchable)
- 💖【High Accuracy】With built-in upgraded wind monitor and temp sensor, this portable WBGT heat stress monitor could test air flow with high accuracy of ±5%, 0.1%RH resolution for humidity, ±0.6℃ accuracy and 0.1℃/℉ resolution for temperature.Supports MAX/MIN wind speed measurement modes, smart anemometro for HVAC maintenance, drone driving and dust collection system etc.
- 💖【Portable WBGT monitor】Not only test Wet Bulb Globe Temperature (WBGT),but also alert you with WBGT alarms when black globe temperature (TG) level reaches 20~50℃. Supports Indoor/ Outdoor WBGT measurement modes, to avoid temperature, humidity and direct or radiant sunlight difference and get more accurate heat stress index. Available in boiler room, mining area, military training and marathon outdoor activities etc.
- 💖【Easy to Use】Supports 5 air velocity units(m/s, Ft/min, Knots, Km/h, Mph) and 2 temperature units(Celsius Fahrenheit degree)option. Data hold button to lock and freeze measurement data. Backlit LCD display and auto power off thoughtful features to help you get use of this wind speed gauge WBGT tester easily.
- 💖【Calibrated Anemometre】All BTMETER electrical products have been strictly calibrated before shipment. Quality wbgt thermometer wind meter BT-881W comes with 365 days warranty quality and lifetime technical supports. Just feel relax to place order and get it for your outdoor hiking camping or household AC system air vent balance :)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09WMQTFKD |
| ASIN  | B09WMQTFKD |
| Additional Features | Portable |
| Are batteries included? | No |
| Batteries  | 1 9V batteries required. |
| Best Sellers Rank | #114,745 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #23 in Wind Speed Gauges |
| Brand Name | BTMETER |
| Color | Orange |
| Customer Reviews | 4.3 4.3 out of 5 stars (45) |
| Date First Available  | March 28, 2022 |
| Display Type | LCD |
| Included Components | 1*Heat Stress Meter 1* User manual |
| Item Dimensions D x W x H | 8.8"D x 2.04"W x 1.57"H |
| Item Weight | 4.96 ounces |
| Item model number  | BT-881W |
| Manufacturer | BTMETER |
| Manufacturer  | BTMETER |
| Material Type | Plastic |
| Model | BT-881W |
| Number of Batteries | 1 9V batteries required. |
| Part Number | BT-881W |
| Power Source | Battery Powered |
| Product Dimensions  | 2.05 x 1.57 x 8.19 inches; 4.96 ounces |
| Recommended Uses For Product | Home |
| Sensor Technology | Ultrasonic |
| Shape | Rectangular |
| Specific Uses For Product | Heat Index |
| Style Name | Modern |
| Temperature Accuracy | ±2℃ |
| Temperature Reading Accuracy | plus_minus_0_point_6_degrees_celsius |
| Upper Temperature Range | 50 Degrees Celsius |
| Warranty Description | 1 Year Manufacturer |

## Product Details

- **Brand:** BTMETER
- **Color:** Orange
- **Material:** Plastic
- **Number of Batteries:** 1 9V batteries required.
- **Power Source:** Battery Powered
- **Product Dimensions:** 8.8"D x 2.04"W x 1.57"H
- **Recommended Uses For Product:** Home
- **Special Feature:** Portable
- **Specific Uses For Product:** Heat Index
- **Style:** Modern

## Images

![BT-881W Heat Stress Meter Anemometer, Digital Indoor/Outdoor WBGT (Wet Bulb Globe Temperature) Meter with Wind Speed, Ambient Temp, Humidity Tester - Image 1](https://m.media-amazon.com/images/I/61nAKAzHpXL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ good tool for the price.
*by A***R on February 4, 2026*

Works like It should, well built and readings seem to be accurate.

### ⭐⭐⭐⭐ Not very accurate
*by T***S on July 16, 2024*

Nice compact meter, but it is not very accurate compared to an actual WBGT meter

### ⭐⭐⭐⭐⭐ Pretty nice for being cheap
*by F***D on October 20, 2025*

For being cheap it is very accurate on average it’s off maybe 1mph vs my kestrel and I gave 10xs the cost for my kestrel

## Frequently Bought Together

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*