What kind of sensors are you using? Etcher Laser February 25, 2019 02:19 Updated Follow We are using a camera, safety, and limit sensors. Related articles What is the laser’s life expectancy ? What kind of sensors are you using? How does it work? I don’t see my material on the list of compatible ones. How do I know if it’s safe to cut or etch with Etcher Laser? What is the battery life? How many hours of continuous use? How do you charge? Comments 0 comments Please sign in to leave a comment.