For the measuring of temperatures in liquids and gases that flow in pipes, conduits, air ducts, reservoirs, tanks and containers. If provided for the application in air ducts, the use of a special installation flange is required. If provided for use in liquids, nickel-plated dip sleeves need to be applied. In aggressive media, the use of dip sleeves of stainless steel installation flanges are not included in the scope of the delivery and need to be ordered seperately as an accessory.