... our company new mini type area secure sensor 4 optic axis.Black plastic shell.It ... optic screen sensorApplicable for the safety detection of automatic assembly line, elevator, danger restricted zone, metal forming machine, ... It is possibleto closely mount more than 2 sets of devices.Fault self-check, function, power failure ... KEYENCE,Honeylell Corp. Minisize area secure sensor can use for Elevators