4 x 1.5 mm² hose cable. Braided and shielded, very low capacity, halogen free. KAL21B is a double twisted pair cable with a mesh and a red jacket (Colors: red-black, brown-yellow). Its passage consists of more than 25 turns between the drivers. It is recommended for use as a data bus and fire detection. Working temperature: -20ºC to 85ºC. Polished copper, flexibility class 5 according to UNE-21.022. Price per meter (Supplied in rolls of 100 meters).