Luggage tracker ... Trakdot.

Luggage tracker ... Trakdot.

A US company says it has developed a gadget that can help air travellers track the location of their checked-in bags.

The palm-sized Trakdot device, unveiled at the Consumer Electronics Show in Las Vegas, can be slipped into a suitcase and let travellers know — by text message or email — if the bag has arrived at the same city as them, or has been misdirected somewhere else, says GlobaTrac.

An accompanying smartphone app also alerts passengers as their bag approaches them on an airport carousel.

The company claims passengers using the device will be able to track their luggage globally — "anywhere mobile phones work".

The unit goes into a dormant mode once an aircraft exceeds 185 km/h, the company says.

The product will be available in North America in March with a suggested retail price of about $US50, says GlobaTrac. There is an activation fee of $US8.99 and an annual service fee of $US12.99. Availability in Australia has not been announced.

AP