Kamar Heatmount Detectors are a valuable heat detection aid that assist in identifying cows ready for artificial breeding. Standing heat behavior in the bovine is the most reliable sign that a cow is ready to be bred. The detectors are a pressure sensitive device with a built-in timing mechanism designed to be activated by standing heat behavior. Glued onto the sacrum (tail head), pressure from the brisket of a mounting animal requires approximately 3 seconds to turn the detector from white to red. This timing mechanism helps distinguish between true standing heat versus false mounting activity.

In the late 1950's, when Veterinarian Earl Smith and A.I. Technician Carl Vail learned that local ranchers had no idea that a cow had to be in estrus ("heat") before she could conceive to artificial insemination, they decided to develop a device to assist A.I. breeders in determining when a cow was in true "standing heat". With the involvement of their inventive neighbor, Wilbur Rule, and after many false starts, the Kamar Heatmount Detector was developed. Over several decades, the Kamar Heatmount Detector has become the accepted standard for economical, accurate bovine heat detection worldwide.