S5 M18 tubular infrared single beam safety sensor type 2 receiver
S5 M18 tubular infrared single beam safety sensor type 4 emitter
S5 M18 tubular infrared single beam safety sensor type 4 receiver
SL5 M18 tubular laser single beam safety sensor type 4 emitter
SL5 M18 tubular laser single beam safety sensor type 4 receiver