X550Pro/X750Pro fume extractors are made of stainless steel. This model has the function of alarm output signal, which can provide linkage signal for automatic production line, and can also choose 3-color warning light to make the signal indication more obvious. The operation panel is controlled by touch buttons and equipped with a liquid crystal display screen, which can check the running status of the machine, fan speed, filter status, etc. and can also remotely control the on-off and timing off functions