I interviewed for a job there once and when I asked what the job was about they said it would be working with "sensors". I told them that I understand that they

I interviewed for a job there once and when I asked what the job was about they said it would be working with "sensors". I told them that I understand that they can't reveal the product they are working on but to get a better idea of if the job is suited to my background and interests should I think of a "sensor" being something akin to a microphone or a camera. They refused to confirm if a camera or a microphone would be considered sensors.