Capacitive proximity switches can be used as IP 69K sensors up to 90 °C, ideal for corrosive environments. High temperature switch up to 200 °C is also available. Large switching distances of up to 120 mm and sensors made of PTFE or PEEK are especially suitable for the food industry and are also part of the product plan. These special sensors also have strong chemical resistance. The analog sensor determines the distance. Explosion-proof sensors that meet ATEX standards can be used as dust and gas explosion-proof sensors.