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 ? 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 kind of sensors are you using? How does it work? 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.