This is our company new mini type area secure sensor 4 optic axis.Black plastic shell.It can install ... eys and 8 eyes.Safe and reliable optic screen sensorApplicable for the safety detection of automatic assembly line, elevator, danger ... supplying powerful controlfunction.Replaceable for similar products made by SICK,STI, KEYENCE,Honeylell Corp. Minisize area secure sensor can use for Elevators