Tulsa firefighters went door-to-door installing smoke detectors Tuesday.
Two neighborhoods were selected after each saw a deadly fire over the past few days.
It was a great help for Phillip Merriman, whose detector started chirping a few days ago.
He removed the battery and had put off buying a new one.
"It's one of the best things there is. These guys are worth their weight in gold to me," Merriman said.
Tulsa firefighters will install a free smoke detector for anyone who can't afford one.
Just call 918-596-9444 to set up an appointment.