A radio-frequency identification (RFID) based personal locator system can help you keep track of items around your house, or find pets and even children. These systems consist of a handheld electronic tracking device and a set of coded locator tags. You attach the tags to household items, such as car keys or a TV remote control, then program the handheld tracking unit with short descriptions of the tagged items. If you lose your keys, the tracking unit picks up the signal given off by the keys’ tag so you can find them. Warnings Writer Bio
