Sorry, I missed out some important punctuation in the sentence making it not very clear - it was late at the time and I was half asleep
What it should've really said was 'when you use the control solution on a test strip (instead of your blood), then the reading on the meter should be between 70 and 94 mg/dl' - hope that makes it more understandable - sometimes I'm not very good at explaining things though.
And yes as Flora123 said different control solutions have different figures, I got two with my meter, solution 1 is 1.7-3.3mmol/l and solution 2 is 14.1-19.1 mmol/l - it means you can check at both low and higher ends of the blood sugar range