... <=6000mm,3 sides<=4000mm;SpecificationSNQxx20 (xx=06, 08, 10, 12......72)SNQxx30 (xx=06, 08, 10, 12......72)SNQxx40 (xx=04, 06 ... , 08, 10......36)SNQxx80 (xx=02, 04, 06, 08......20)Light axis pitch 20mm,30mm,40mm ... )Notes Notes Identifies the parameters for the selected Supply High Precision Area Light curtain SNQ 0820