Nidek KM-300J Keratometer This is a used keratometer. It is in good cosmetic condition. It powers on and the power light comes on. The light in the tube comes on we can adjust the brightness with the knob. When we look at items through the tube it seems to magnify very well. The lens does no have any major scratches that we can see. The two small lamp holders on either side of the main tube are missing the bulbs. The hole where the power cord comes out of the base needs the plastic insulator ring as can be seen in the last picture. We are not able to test it further. It only comes with what is shown in the pictures. WF F5-4 d 8828188 rl fdk 81006208