---
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: "R1195"
currency: ZAR
in_stock: true
reviews_count: 12
category: "Btmeter"
url: https://www.desertcart.co.za/products/448689010-bt-881w-heat-stress-meter-anemometer-digital-indoor-outdoor-wbgt
store_origin: ZA
region: South Africa
---

# 0.1%RH humidity resolution ±0.6℃ temperature accuracy 0~30m/s wind speed range 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:** R1195
**Availability:** ✅ In Stock

## Summary

> 🌟 Master your microclimate with precision and style!

## 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?** R1195 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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

- • **Precision You Can Trust:** Engineered with upgraded sensors delivering ±5% wind speed and ±0.6℃ temperature accuracy for data-driven decisions in any setting.
- • **Versatile & User-Friendly:** Choose from 5 air velocity units and 2 temperature scales, with a backlit LCD and data hold function to keep your workflow smooth and efficient.
- • **All-in-One Climate Command:** Seamlessly switch between wind speed, heat stress, temperature, and humidity modes with one button—your ultimate environmental multitool.
- • **Real-Time Heat Stress Alerts:** Stay ahead of heat risks with WBGT alarms that notify you when black globe temperature hits critical levels—perfect for outdoor pros and safety-conscious managers.
- • **Portable Powerhouse with Warranty:** Compact, battery-powered, and calibrated for accuracy—backed by a 1-year warranty and lifetime support to keep you covered on every project.

## Overview

The BTMETER BT-881W is a compact, multifunctional digital meter combining anemometer, heat stress (WBGT), temperature, and humidity measurements. It offers high accuracy with ±0.6℃ temperature precision and ±5% wind speed accuracy, supports multiple units, and features real-time heat stress alerts. Designed for indoor/outdoor use, it’s ideal for HVAC, outdoor activities, and workplace safety, backed by a 1-year warranty and lifetime technical support.

## 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 | #76,450 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Wind Speed Gauges |
| Brand Name | BTMETER |
| Color | Orange |
| Customer Reviews | 4.4 4.4 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 | 0.31 Pounds |
| 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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**Shop now:** [https://www.desertcart.co.za/products/448689010-bt-881w-heat-stress-meter-anemometer-digital-indoor-outdoor-wbgt](https://www.desertcart.co.za/products/448689010-bt-881w-heat-stress-meter-anemometer-digital-indoor-outdoor-wbgt)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-21*