Thanks for your interest in the OvaCue Fertility Monitor. Unfortunately, after 40 years of service to the TTC community, all models of the OvaCue have been retired. It's had quite a run and has been such a tremendously helpful ovulation prediction tool for so many wonderful people over the years. The underlying science is tried and true, but it has been challenging to innovate and improve this device and keep up with the fast-changing technology in this field. We remain committed to helping customers predict ovulation with accuracy. Click here to browse our other ovulation prediction tools. For OvaCue support, please email info@ovagraph.com or call 1-800-367-2837 option 2.