Dash Board: Meters were supposed to sense the targets and give readings. Scarlet
intens to do more. TWL theory determines the threshold for 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.
Warning (TWL-1SR Model only) : 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.
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.
Data Logger : 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 synchronizes the date and time of the device with PC.
Optimised Globe: TWL theory considers Mean Radiant Temperature (MRT), the most important
parameter governing human energy balance. MRT can be derived from globe
temperature (GT) measured by the black-bulb thermometer. The smaller the
surface area of the black bulb, the greater the effect of the air
temperature and air velocity is, thus causing inaccuracy of the
calculation of MRT. Therefore, it needs a modifying formula to adjust it
to the standard globe bulb with a diameter of 15 cm. The 7.5 cm globe
bulb is the optimal size for a portable based on our research and
Sensor Protection : Delicate temperature and humidity sensor are well protected by a
replaceable polypropylene (PP) filter in a solid shield, exempted the
sensors from dust damage and external strike. A silicone pad protects
the mechanism of anemometer from dust.