\n \n \n \n \n \n \nSMC 90137 \n \n \n \nSMC 90137/1 \nMotor 1/6 HP, Cylinder cap .5 0ml \nRpm Display : 3 digit LED \n \n \nSMC 90137/2 \nWith Digital Revolution Counter \n \n \n \n \n \n \n \n \n \n