The Nasco Life/Form AED Trainer, lf03740u, helps prepare students for emergency situations with scendarios designed to simulate real-life situations. Students learn the appropriate steps to follow in both “shock” and “no shock” situations. The instructor chooses one of 4 scenarios, and then prompts students in appropriate actions and responses. The lightweight, compact trainer comes with reusable pads and electrode sets, 9V battery, and operating instructions. Updated to follow 2005 AHA Guidelines. Three-year warranty.