beam sensor,is made of one control mode and two eyes,act ... of automatic door ,to supervise the door of operation . beam sensor,General international optical lens design, and good focus, controlled reasonable ... shielding. Yishuguang one can control, Control can also be a double-beam. Block the light trigger, the output signal can contact ... )×13mm(D)control:123mm(L) × 50mm(W) × 32mm(H) beam sensor