The EX-6100 Series are 24 VDC, 4-20 mA sensor/transmitters. They are ATEX and IECEx certified explosionproof for use in hazardous areas. They consist of an epoxy painted aluminum transmitter enclosure for the electronics supporting an LC display, two alarm and fault relays, and a choice of four sensor types in a stainless steel housing. Electrochemical type sensors are available for oxygen and several toxic gases. IR sensors are available for hydrocarbons or CO2. And a catalytic type sensor is offered for % LEL hydrocarbons.