Given the XK scale and the markings on the Ohms line I'm pretty sure that 800-900 is the correct resistance reading (from right to left it goes 0, 0.5, 1, 2, 3.... multiplied by scale xK=x1000) if you use the x10 scale it should be in a range of 0 to 5kOhms so it might be easier to confirm and...