Workers at a Ford plant in Plymouth, Mich., are testing wristbands that vibrate when they come within six feet of each other, according to a Bloomberg report.

The goal is to keep workers to the minimum distance advised by health experts to avoid community spread of the coronavirus. According to the report, the devices might be employed widely when Ford reopens its idled plants.

Ford is considering other social-distancing protocols such as fever-detecting thermal-imaging scanning and plastic face shields.