KA300-320mm YHSINO Linear Scales for Lathe Mill CNC Machines USA Ship 5U 5V TTL The order is one piece 5u(0.005mm) KA300-320mm linear glass scales/linear encoder/linear sensor. The S ignal of Linear optical ruler/Linear glass scales/Linear encoder/Linear sensor. 1 pcs linear scale KA300-320mm. byJuly 5, 2026