iKey® manufactures devices to reduce risk of failure in your hazardous areas. The intrinsically safe DU-5K-FSR-IS is designed to meet NEMA 4X specifications. It features 116-key functionality, including 24 function keys, and an ABS polycarbonate case. It has a Factory Mutual approval for Class I, II and III, Division I, Groups C, D, E, F and G. The DU-5K-FSR-IS includes optical isolated barriers and bulkhead cables for complete protection in hazardous locations. An upgraded FSR pointing device is integrated into the DU-5K-FSR-IS, which offers improved sensitivity and increased durability.