A detection device for the quick of an animal claw incorporates a sensor device and scan system technology into a hand-held device that locates the location for a proper cut, avoiding cutting the quick and avoiding pain to the animal. The scan system technology may include a light sensor, an infrared sensor, a laser sensor, an ultrasonic sensor, or an intensity transducer. A control circuit determines the position status of the device and applies a mark on the claw to designate a position that is safe to clip in order to avoid the quick of the claw.