Manufacturer of the  


family of ovulation prediction products, since 1983.

Fertility and Conception About Fertility Monitors OvaCue Fertility Monitor About Zetek


Order now and receive a free pregnancy test — you're going to need it!


"When I ordered your product I was skeptical, but after the first month of using the OvaCue and your help line, I developed the confidence to totally rely on the system to determine the most effective time to have intercourse.

After using the OvaCue for the third month, I found out I was pregnant. The beauty of the OvaCue system is that it is simple, inexpensive, and accurate.

I was especially impressed by your toll-free help line--the staff was friendly, knowledgeable, and professional."
-- Mrs. P. O., Florence, KY

More success stories


Return Policy: Your OvaCue (if purchased from Zetek) may be returned for any reason within 30 days for a 15% restocking fee.

Questions? Order by Phone?

Call 1-800-FOR-CUES



Order Page

With your purchase of the OvaCue Fertility Monitor you will know in advance exactly when you will be most fertile and what your fertility level is for each day of your cycle. You will have the convenience of using saliva to predict ovulation and access to our toll-free help desk should you ever need support.

Please select:

Ovacue with Oral Sensor, $298

The OvaCue comes complete with everything you need to track your fertility for a lifetime. Each order includes:

  • 1 yr manufacturer's warranty
  • Free technical support
  • Free shipping (U.S. only)
  • Sensors in aseptic packaging
  • All necessary batteries and connectors
  • Complete owners manual



Add vaginal sensor to order for $85

While the vaginal sensor is not required for predicting ovulation, most of our customers elect to purchase one. If you are uncertain about whether you are ovulating, the vaginal monitor will give you a clear answer. It also gives you the added confidence that the OvaCue is indeed predicting your date of ovulation accurately. Finally, by confirming ovulation it clearly marks the end of your fertile period. If you choose not to order the vaginal sensor now, you can always purchase it later.

More info.



Add Ovagraph software to order for $24.95

With OvaGraph software installed on your home computer, you can easily download your cycle data from the OvaCue. Then, with a few clicks of the mouse, graph your current and past hormonal patterns, or print them on a calendar for a permanent record. Should the need arise, data can then be shared with your doctor or a clinic for futher intrepetation. (Windows PCs only)

More info.



Add Serial to USB Converter for $19.95

For use with the Ovagraph software on computers without serial ports. Converts your computer's USB port to a serial port.



Add Baby Start™ Male Fertility Test to order for $34.99

Baby Start™ Male Fertility Test from FertilMARQ determines if a man's sperm concentration meets the minimum fertility requirement of 20 million sperm per milliliter of ejaculate established by the World Health Organization (WHO). Since sperm concentration is one of the most critical determinants of male infertility, this screening test offers useful information for a couple and their physician to help diagnose male infertility. And the test is performed in the privacy of one's own home.



Shipping method: Choose one

(Note, you should begin using your OvaCue by the fifth day after the start of menstruation.)

Ground (Free)
2-3 day air ($15)
Overnight ($28)
Alaska/Canada ($25)
International ($42)

Total $298
If you have made any changes above, please press "Update" to recalculate the purchase total.


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               876 Ventura Street • Aurora, Colorado • 80011 • USA               1-800-FOR-CUES