说明
Instead of a traditional device with buttons and a top cover we have developed the Safeball solution. Safeball is a ball with two switches, one on each side of the ball. It is because of these two switches that we have been able to remove the requirement for a top cover. To be able to start and operate a machine both buttons must be activated.
For a two-hand control device one needs to have a Safeball for each hand to be able to o