How to use the sugar checking machine?

There are so many sugar checking machine are available in the market that are considered to be used in a very simple as well as easy steps. Just take the sugar test strips and with the help of that prick your fingertip and take out a drop of blood from the same and insert that blood drop into that sugar testing machine. Now tap on the start checking button and now in around 5 - 6 seconds the results will be shown to you.