Does anyone have experience using this?
This Electronic Ovulation Detector for Dogs:
eliminates the need to mate the bitch multiple times;
identifies "false heat";
identifies "split heat";
reduces/eliminates breedings that "don't catch";
is time saving;
greatly reduces the expense, as compared to the multiple progesterone tests used to identify the exact time of ovulation.
http://www.quinnweb.ca/quinncarlin/Draminski.php