VIDEO: Life jacket? Check. Engine running? Check. Ability to see under water? Scott Gomoll now has that too. The 360 Side Sonar mounts in two portions on the Merrill Fire Department's search and rescue boat. Monday morning, firefighter/paramedic Gomall took the new tool out for practice and training. "The sonar beam is like a flashlight in pitch darkness," Gomoll said. "We can guide a diver to, literally, right onto a target where it's in arm's reach." "Drag hooks, you know because of snagging," Gomoll said.