High Quality 4 Level 10mm 20mm

Superior Quality Four Level Beam Gap Infrared Safety Light Curtain Barrier Sensor, 10 mm, 20 mm, 30 mm, and 40 mmName of the productExcellent 4 Level Beam Gap Infrared Safety Light Curtain Barrier Sensor: 10 mm, 20 mm, 30 mm, and 40 mm