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The newest OvaCue Fertility Monitor represents a major advance for women looking to identify their complete fertile window. OvaCue works by measuring your electrolyte levels which change in concert with your ovulatory cycle. Now, with one simple handheld device, you can accurately measure your unique hormonal changes and visually track your cycle with an interactive calendar.

Safe & reliable
Zetek has been manufacturing and selling FDA approved fertility monitors for over 20 years. We have helped thousands of couples conceive. We provide personalized customer support—if needed, we'll track your cycles with you.

Easy to use
Simply place a spoon-sized sensor on your tongue for five seconds each morning and the OvaCue will automatically record your fertility for the day. The OvaCue tracks the readings in memory and indicates your most fertile days graphically on a calendar.

Accurate
Zetek’s Electrolyte Method™ has been proven to be 98.3% accurate at monitoring ovulation in numerous studies, including those sponsored by the National Institutes of Health and published in peer-reviewed journal articles.

Convenient
The OvaCue requires no urine sampling and can be used for many years with no additional purchases required.

The OvaCue comes complete with everything you need to track your fertility for a lifetime. Each order includes:
•1 yr manufacturer's warranty
•Technical support
•Shipping (U.S. only)
•Sterilized sensors in sealed packaging
•Batteries
•Complete owners manual