In recent years, some companies have offered electronic tracking devices to keep track of speed and mileage. (moneystepper.com)
At the base of their pelvic fins they inserted small electronic tracking devices, able to calculate position and depth, and then released the young sharks back into the water. (sciencedaily.com)
«Despite the development of several types of electronic tracking devices aimed at helping to reduce risks related to wandering by children with autism and other developmental disorders, currently there are no published findings regarding the effectiveness of these devices or their impact on families,» said Laura McLaughlin, Developmental & Behavioral Pediatrics Research Assistant and Principal Investigator for the studies. (sciencedaily.com)