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Scarlet TWL1S : Heat Stress Detector,

The Scarlet TWL-1S is used to monitor and assess thermal risk level indoor and outdoor. It has a smart user-friendly interface which allow users to instantly identify the thermal risk level result based on different colors. Users can also do data logging directly by connecting the device to windows PC via the USB cable. Wireless pager for remote alerting system is available for the TWL-1SR model. The TWL measures air temperature, humidity, radiant heat and wind speed to come up with instructions for work, rest and hydration plan. We integrate the algorithm of TWL and work-rest schedule based on the latest guideline. The user-friendly interface even showed different colors to ensure users in line with TWL schedule. For example, red means unsafe for work, yellow means buffer zone and green means safe for work.


Meters were supposed to sense the targets and give readings. Scarlet intends to do more. TWL theory determines the threshold for a safe, fair, and dangerous working environment. Colorful LCD backlight tells you the risk level based on the TWL value. Work-rest schedule and fluid intake are integrated into the display. A countdown timer shows the time remaining before a recommended rest.


The working timer starts counting according to TWL value. When it expired, the device will notify the pager carriers remotely. It reminds you to take actions. 433 MHz technology is used to offer better penetration ability and 200 meter coverage in an open area is achieved. Please note that pager is available in TWL-1SR model.


Delicate temperature and humidity sensors are well protected by a replaceable polypropylene (PP) filter in a solid shield, exempting the sensors from dust damage and external strike. A silicone pad protects the mechanism of the anemometer from dust.

Scarlet TWL1S Hest Stress Monitor measures air temperature (Ta), relative humidity (%RH), globe bulb temperature (Tg) and wind speed (WS), whereas wet bulb temperature (Tw) is derived from Ta, %RH at sea level atmosphere pressure.

WBGT (Wet Bulb Globe Temperature) and TWL (Thermal Work Limit) can be calculated on the device. WBGT is derived from Tw, Tg or/and Ta wheather indoor or outdoor. TWL is derived from Tw, Tg, Ta, WS with the assumption of safe maximum core temperature for human 38.2 C

It comes with

Tripod x1,
• AAA battery x 4,
• USB cable x 1,
• Toolbox x 1,
• Conformity certificate,
• User manual

Buy Scarlet TWL-1S : Heat Stress Detector in Dubai, Sharjah, Ajman, Umm al Quwain, Al Ain, Ras al Khaimah, Abu Dhabi, UAE from Maisam Trading LLC at best prices!