SENTINEL PLUS PRESS BRAKE GUARDING SYSTEM https://dscautomation.com.au/sentinel-plus-press-brake-guarding-system/ The Sentinel Plus guarding system features a laser transmitter and receiver that are mounted to the upper beam of the press brake. A continuous block laser field protects the zone around the punch tip allowing the operator to safely hold the work piece as the tools close at high-speed. If an obstruction is detected the machine is automatically stopped.