suitable for Dog Ovulation Detector Breeder Tester Machine Pregnancy Planning Breeder Canines Detecting Mating,Dog Insemination Kit-FO SHAN RAN WANG Detecting the best mating time for bitches,No need to repeat mating. Helps to identify 'silent heat' and ovarian cycle disorders.Reduction of costly visits to the vet. Allows for eliminating the stress related with repeated attempts at mating. Reduces travel costs related to re-mating. Power by:1 x 9V battery Colour:Black Material:Plastic Package Contents: 1 x dog Ovulation Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Please pay attention to the title and description when buying, and pay attention to the title and description when buying.