The Scarlet TWL-1S Heat Stress Meter is a professional handheld device designed to measure Thermal Work Limit (TWL) using air temperature, globe temperature, humidity, and wind speed. Ideal for construction, oil & gas, and outdoor safety monitoring across the UAE, it provides fast and reliable heat-stress assessment to protect workers in high-temperature environments.
| Category | Details |
| Brand / Model | Scarlet Tech – TWL-1S |
| Measurement Index | TWL (Thermal Work Limit) |
| Sensors Included | Air Temperature, Globe Temperature, Relative Humidity, Wind Speed |
| Wind Speed Sensor | 3-cup anemometer (mechanical) |
| Display | Backlit LCD screen |
| Measurement Range – Temperature | Typically, 0°C to 60°C (varies by sensor) |
| Humidity Range | Typically, 0–100% RH |
| Wind Speed Range | Typically, up to 20 m/s |
| Power Supply | Battery operated |
| Alarm Functions | Visual & audible alarms |
| Data Hold / Logging | Local data display (model-dependent for logging) |
| Housing | Rugged handheld ABS body |
| Applications | Heat stress assessment, worker safety, outdoor monitoring |
| Included Accessories | Meter, anemometer, globe sensor, protective case (standard kit) |








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