Autonics Area Sensor, Through beam type(direct beam) BW40 18 Insulated Nippers Curved Specification item model symbol Specification Specification item model symbol Specification information built in magnet D built in magnet installation support B Through hole (standard) form pneumatic type tube inner diameter 20 tube inner diameter 20mm Types of port screws Rc M screw cylinder stroke 20 cylinder stroke 20mm body options Standard (rod end female thread) Auto switch mounting groove Z ø12 ø25 2 sides ø32 ø100 4 sides auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard Reference Mechanical Grease Oil NU307W 35 80 21 1