... -vibration 1.Basic introductionSNQ0640 light curtain series, sensor section size is 53 ×35,structure compact ... ,beautiful outlook,mainly be used in small stamping equipment, shearing equipment, machinery processing ... series photoelectric protection device order instructions ControllerN-type (built-in) *W-type (external)S-type (control of ... for the selected Infrared Area Sensor SNQ0640