ExII Explosion-proof, weatherproof industrial telephone ideal for indoors and outdoors applications in hazardous areas zone 1, 2, 21, 22 (certified for dust and gas exposure). Allows hands-free operation. Housing made of GRP, equipped with 21-key VAA stainless steel keypad designed for use with gloves. Locking function with PIN available. IP66 according to EN 60529. Operating temperature: -25°C to +60°C. Dimensions: 266x227x135mm. Line voltage: 24Vdc to 66Vdc.