ITEM NAME:TCRT5000 Barrier Line Track sensor Infrared Reflective Photoelectric Switch Z a.imagelink a:hover.imagelink {color:#db3606;.1, using infrared reflection sensors TCRT5000. 2, fax machine, shredder paper detection. 3, obstacle detection. 6, output form: digital switch output (0 and 1). 7, has a fixed bolt hole, convenient installation.