OG0031,THROUGH-BEAM SENSOR; INFRARED LI
OG0033,RETRO-REFLECTIVE SENSOR; RED LIG
OG0035,DIFFUSE REFLECTION SENSOR; INFRA
OG0039,THROUGH-BEAM SENSOR; INFRARED LI
OG0041,DIFFUSE REFLECTION SENSOR; INFRA
OG0044,RETRO-REFLECTIVE SENSOR; RED LIG