Surface overhead - floor mount contact. Roller shutter contact. Aluminium body. Armoured sleeve. Stainless steel 8 mm flexible. Connectivity: 4 wires,? 45 cm. Dimensions magnet: 75 x 60 x 32 mm. Dimensions contact / sensor: 150 x 40 x 15 mm. Operating gap: 50 mm (max.). Operating temperature: -40 to +50°C.