Delta Airlines has just released a new device for passengers flying with the most precious cargo of all: their pets.

The device, which costs $50 per flight, is attached to the pet’s carrier while in-flight and on the runway.

It’s only available at 10 U.S. airports, including New York, Los Angeles, Seattle, and Tampa, and only if you bring your pet to the cargo facility.

See also: Delta apologizes for ‘objectionable content’ after Facebook hack

Using a combination of GPS tracking and other indicators, the devices monitor all of the factors that ensure your pet is as comfortable as possible during the flight. If the cabin temperature spikes or their crate is knocked over, an alert is sent to Delta’s call center and to your phone. Due to regulations about cell phone usage during flights, alerts can only be sent while the plane is on the ground.

The device comes at a time when many airlines are under fire for their animal handling procedures.

Airlines have only been required to report animal incidents (including deaths, injuries, and losses) since 2005, and in that time the top 20 airlines have been responsible for more than 470 separate incidents.

The monitoring system may be just an expensive security blanket for worried pet owners, but hopefully it will help airlines keep better tabs on all of their passengers, even the furry ones.

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