ATEX flame sensors cleaning kit, used to prevent particles accumulation on the sensitive element of the sensor in case of highly dusty environments. It is applied on the sensors TFDF-EX IR2 - TFDF-EX IR3 - TFDF-EX UVIR2. Orientable (45°). It should be connected to a 0.5 / 3.5 Bar compressed air source. It does not require electric power supply.