You can reset the 'm' Button on any morning up to Day 5 of your monthly cycle. Don't forget - the TIME when you press the 'm' Button determines your Testing Window for the rest of that cycle, during which you must do all tests requested, using your first urine of the day. So make sure that your Testing Window is convenient for weekdays and weekend.

When you are ready to proceed, hold the 'm' Button down until the number 1 (for Day 1) appears on the Display Screen. Keep holding the 'm' Button down and the number 1 will change to number 2. If you are on Day 2 of your monthly cycle, release the 'm' Button and the Monitor will be correctly set on Day 2.

If you continue to hold the 'm' Button down the display counts up to Day 5 and then back to Day 1, and so on. If you are on Day 3, 4 or 5, simply release the 'm ' Button when the correct number is shown on the Display Screen. The Monitor will work correctly once the correct day is set.

Please Note: If you are not able to set the 'm ' Button during the first 5 days of your monthly cycle, your Monitor will not have enough information to advise you on your contraception.

You should wait until your next period before setting the 'm' button. For the remainder of that cycle you should abstain from intercourse. If you choose to use a barrier contraceptive (e.g. a condom, reliability will subject to your chosen method. If in doubt ring the PERSONA Line.