Your Natural Birth Control
& Family Planning Device
the safe fertility Computers for over 25 years
Fertility Computer

Its 99.3 percent effective

The fertility computer takes your basal body temperature (BBT) every morning when you wake up with the most advanced temperature sensor (1/100 degrees accurate). It then automatically compares it with its bio-mathematical forecasting software and stored information of all available family planning research in addition to hundreds of thousands of cycles of other women, to accurately determine, analyze and display your individual cycle. This is why the intelligent fertility computer is one of the most effective fertility monitors in the world. It is 99.3% effective right from the start. A Pearl Index of 0.7 means that this 100-percent natural method is 99.3 percent safe and effective.

What is the Pearl Index? The Pearl Index determines effectiveness...

In the medical field, the Pearl Index is used to report the effectiveness of a certain birth control method. For example: if 100 women use a particular birth control method for one year and one woman becomes pregnant, the Pearl Index of this method is 1.0. Birth control pills have a Pearl Index between 0.1 and 0.9, diaphragms range from 1 to 3. With a Pearl Index of 0.7, the fertility computers of Valley Electronics are the leader in natural pregnancy prevention and family planning.

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Better every time.

You should take your wake-up temperature as regularly as possible because the more information the computer collects, the easier it is to narrow down the number of fertile (red) days. The computer is safe from the first measurement on. The more data you give the computer the more the computer knows about you.


The fertility computers are programmed to accurately determine and display the time of ovulation in the female body. Ovulation causes a slight, but noticeable rise in body temperature. When you measure your temperature with the sensor every morning before you get up, the fertility computer evaluates the data and quickly recognizes your individual fertility pattern.

If you are fertile the computer will display a red light and if you are in your infertile phase the computer will show you a green light. The display is 99.3% accurate and valid for the next 24 hours.

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