Description
Our new Wearable WBGT Heat Stress Meter is a reliable and essential tool for accurately measuring the effects of high temperature and humidity on the human body.
Designed to meet rigorous standards, this advanced instrument provides quick-response and precise measurements, making it a perfect choice for a wide range of professionals and individuals concerned about their health during outdoor activities. This compact meter is a must-have for athletes and trainers, military personnel, industrial/occupational hygienists, outdoor workers, sports medicine specialists, and anyone who wants to monitor their well-being in challenging environmental conditions. With its versatile wearable design this meter offers unmatched flexibility and convenience in a variety of settings
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Comprehensive Measurements
Allows you to measure several vital parameters, including the Wet Bulb Globe Temperature (WBGT), black-globe temperature (TG), air temperature (TA), and humidity (%RH). This comprehensive data empowers you to understand the impact of temperature and humidity on the body accurately.
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Multiple Applications
The meter offers three different application modes for ease of use. You can choose to wear it as an arm band for a wearable option, mount it on a tripod for stationary measurements, or hang it in a desired location using the included hanging feature. This adaptability ensures that you can monitor heat stroke index wherever you need to.
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High-Sensitivity Sensors
The meter is equipped with a high-sensitive capacitive humidity sensor and a band-gap temperature sensor. These advanced sensors deliver precise and reliable measurements, allowing you to assess the environmental conditions accurately.
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Convenient Indicators
The meter features a low battery indicator, ensuring that you never run out of power unexpectedly. Additionally, with the real-time alarm and heat hazard level indicator, you receive timely alerts and notifications, enabling you to take necessary precautions and prevent potential risks.
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User-Friendly Settings
User-selectable options allow you to customize the meter according to your preferences. You can choose between °C and °F temperature units and switch between outdoor and indoor measurement modes effortlessly.
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Compliance
Meets the JIS B 7922 Level 2 standard, guaranteeing its reliability and accuracy. You can trust this meter to provide you with precise measurements in accordance with industry regulations.
This is a dependable and feature-rich instrument that ensures you stay informed about the effects of high temperature and humidity on your body. Whether you're an athlete, a professional working in challenging environments, or simply someone who values their health, the TM-288 is the perfect companion for monitoring heat-related risks and taking necessary precautions.
Includes: Meter, (1) Button Cell Battery, Armband/Strap, Carabiner Belt Clip, Instructions and Factory Certificate of Calibration.
Dimensions: 4.57" x 2.36" x 1.97" (LxWxH)
Weight: 2.8 Ounces
Specifications
Wet Bulb Globe Temperature (WBGT)Unit | Measuring range | Resolution | tolerance range 15~40°C |
°C | 0~50.0 | 0.1 | ±2.0 °C |
°F | 32.0~122.0 | 0.1 | ±3.6 °F |
Indoor & outdoor without sunshine ”IN”: WBGT = (0.7×WET)+(0.3×TG) Outdoor in sunshine ”OUT”: WBGT=(0.7×WET)+(0.2×TG)+(0.1×TA) |
Air Temperature (TA)
Unit | Measuring range | Resolution | Tolerance @15~40°C |
°C | 0~50.0 | 0.1 | ±0.6 |
°F | 32.0~122.0 | 0.1 | ±1.1 |
Black Globe Temperature (TG)
Unit | Measuring range | Resolution | Tolerance @15~40°C |
°C | 0~80.0 | 0.1 | ±0.6 |
°F | 32.0~176.0 | 0.1 | ±1.1 |
Humidity (% RH)
Unit | Measuring range | Resolution | Tolerance @25°C |
%RH | 30.0~90.0 | 0.1 | ±5.0%RH |
%RH | <30.0 , >90.0 | 0.1 | ±7.0%RH |
Downloads

Instruction Manual
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