Siemens IT2C2221HS Description Description Siemens Detector EEx-d HYDROGEN SOLFOR. 4-20 mA 0 Related products SIEMENS 1FK7042-5AK71-1FB0 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FK7083-5AF71-1EB3 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK7060-5AF71-1FH3 SIEMENS 1FK7022-5AK71-1DA0