TW-8K is a reliable temperature measurement device to be used in a coal pit of Japan now.
This device is the explosion proof specifications that can carry out thermometry safelyin the U/G having a danger zone.
The temperature sensor for measuring is fixed installed in the coal seam. (Refer to Fig.) Temperature is then measured by connecting the temperature sensor to TW-8K.
TW-8K has a built-in rechargeable battery. TW-8K can be used for more than 8h on one charge
