The pet deterrent system is a training device that is adapted for use with an animal. The animal is a domesticated animal that is commonly referred to as a pet. The pet deterrent system: 1) senses when an animal enters a monitored space； and, 2) generates a deterrent response that discourages the animal from entering the space monitored by the pet deterrent system. The pet deterrent system trains the animal to avoid entering the monitored space. The pet deterrent system comprises a tracker and a sensor. The tracker is worn by the animal. The sensor is an active sensor that monitors the monitored space. When the tracker is detected in the monitored space the sensor generates a deterrent response intended to discourage the animal from entering the monitored space.
