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Just looked at the website... looks like the digi OPKs detect LH and the Fertility Monitor detects LH and estrogen.
https://www.clearblueeasy.com/clearblue-easy-fertility-monitor.php
https://www.clearblueeasy.com/clearblue-easy-digital-ovulation-test.php
Re: Possibly another dumb ?
Just looked at the website... looks like the digi OPKs detect LH and the Fertility Monitor detects LH and estrogen.
https://www.clearblueeasy.com/clearblue-easy-fertility-monitor.php
https://www.clearblueeasy.com/clearblue-easy-digital-ovulation-test.php
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