The Scarlet TWL-1S is a color-coded heat stress monitor that measures temperature, humidity, radiant heat, and wind speed to generate real-time work-rest-hydration guidance on site. The TWL-1SR variant adds a 433 MHz wireless pager (200m range) for remote alerts when safe working time runs out. USB data logging and rugged, dust-protected sensors make it ideal for construction sites, tower cranes, ports, chemical plants, and airports. Available from Sertex Safety UAE.
Scarlet TWL-1S Heat Stress Monitor — Thermal Risk Assessment Device
The Scarlet TWL-1S is a heat stress monitoring device designed to track and evaluate thermal risk levels for both indoor and outdoor work environments. Its color-coded display gives workers and safety officers an instant, easy-to-read risk status — no technical interpretation needed. The unit captures four key environmental readings — air temperature, humidity, radiant heat, and wind speed — and processes them through a built-in Thermal Work Limit (TWL) algorithm to generate real-time work, rest, and hydration guidance based on current heat-stress protocols.
Available in two variants: the standard TWL-1S for on-site monitoring and data logging, and the TWL-1SR, which adds a wireless remote pager for alerting supervisors or workers away from the main unit.
Key Features:
Recommended Applications:
Construction sites, tower crane operations, outdoor events, port terminals, chemical plants, and airports — anywhere workers face prolonged heat exposure and a documented work-rest cycle is required for safety compliance.
Available at Sertex Safety UAE, serving Abu Dhabi, Dubai, and across the UAE.
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