In Just 6 Months, ‘Fever Cameras’ Have Become a Full-Fledged Industry

More than 150 companies now sell alleged fever-detecting technology aimed at the coronavirus

A Hikvision thermographic camera at the London Southend airport in Southend-on-Sea, England on June 18, 2020. Photo: John Keeble/Getty Images

In October 2016, a Shenzen-based video surveillance company called Sunell set up an experiment: It installed thermal cameras and facial recognition in the entrances of six schools in northern…