TWL-1S Heat Stress Monitor
Designed to Prevent Heat Stroke and Illness for Workers in High Temperature Environments.
Scarlet TWL-1S is designed to prevent heat stroke and illness for workers. Risk assessment for heat-related illness in the worksite is quite essential in high temperature environments. TWL-1S can be applied at outdoor and indoor working environments. The TWL-1S can measure Wet Bulb Globe Temperature (WBGT), Thermal Work Limit (TWL), Globe Temperature, Dry Bulb Temperature, Relative Humidity, Wet Bulb Temperature and Wind Speed. The 433 mHz wireless paging technology can actively warn HSE officers at the distance of 200 metres.
The cup anemometer captures winds from any direction. You do not have to manually decide the wind direction before measuring the wind speed. Compared to the impeller, wind cup is not restricted to the direction of the wind. It considers all the horizontal components of winds that move the anemometer. A silicone pad covers the top of the bearing to prevent it from dust accumulation.
Additionally, the TWL-1S can record data with configurable sampling rate. PC side software helps download the data for further analysis using other analytical tools, and it also synchronises the date and time of the device with PC.
For more information on the TWL-1S Heat Stress Monitor, contact your local Air-Met office.
- Designed to monitor heat stress
- 2 Heat Indices: TWL and WBGT
- Measurement:
- Wet Bulb Globe Temperature (WBGT)
- Thermal Work Limit (TWL)
- Globe Temperature
- Dry Bulb Temperature
- Relative Humidity
- Wet Bulb Temperature
- Wind Speed
- Datalogging
- Risk Level Indicator
- Mini USB Interface
- Intuitive user interface
- Wireless remote notification
| Air Temperature | Range 0…60 °C / Accuracy ±0.6 °C |
| Globe Bulb Indoor | Range 0...80 °C / Accuracy ±1.0 °C (15...40 °C); ±1.5 °C (others) |
| Globe Bulb Outdoor | Range 0...80 °C / Accuracy ±1.5 °C (15...40 °C); ±2.0 °C (others) |
| Relative Humidity | Range 5...95 %rh / Accuracy ±3% (at 25 °C; 10...90 %rh) ±5% (others) |
| Wind Speed | Range 0.5...10 m/s / Accuracy ±(2% of reading + 0.2) m/s |
| Dimensions | Body 59 x 37 x 316 mm (w x d x h). Wind cup (top view) diameter 182 mm |
| Operating Range Electronics | -10…60 °C |
| Accuracy at 23 ±5 °C | ±1.0 %rh / ±0.2 K |
| Power Supply / Consumption | 4 AAA 3V battery, power supply 6 mA consumption without lighting |
| Probe Protection | Polypropylene plastic cage |
| Calibration / Adjustment | Scarlet calibration kit |
| Measurement Interval | 2 seconds |
| Backlight | with Backlight |
| Alarm Indicators | Yes |
| Battery Indicator | Low Batt. Display |
| Battery Life | 120 hours with alkaline batteries |
| Software | Scarlet TWLIT |
| Risk Level Indicator | Yes. 3 colour LCD backlight: red (risk), yellow (med), green (safe) |
| Data Logger | Yes. Min data rate 10 min, 2,000 data. |
| Connection Interface | Mini USB (UART) |
| Enclosure Material | ABS |
| Standard | CE compliant |
- Open cut mining
- Aluminium, metal, cable
- Glass
- Construction
- Workplace health and safety
- Transportation sites
- Manufacturing facilities
Scarlet Tech TWL-1S Heat Stress Monitor Spec Sheet Scarlet Tech TWL-1S Heat Stress Monitor User Guide
