The IGEX20Pa-type proximity switches withstand low temperatures down to -60 °C. ATEX- and IECEx-certified for use in Ex zones 0 and 20, these sensors can be used in hazardous areas with gas or dust atmospheres. Easy-installation variants of these Polar series proximity switches also are available. Featuring the ignition protection type Ex m (encapsulation), these models can be used in Ex zones 0 and 20 by themselves, without the need for additional switching amplifiers. The sensors come with IP67 and IP68 ingress protection and in M12, M18 and M30 designs. Given a flush installation, the nominal switching distances are 2, 5 and 10 mm, depending on the design.