Town officials are assuring residents that the new smart meters being installed at all homes and businesses meet federal safety standards. The meters transmit consumption data by radio wave from the home or business to the town’s electric and water billing offices. The town offered the advisory in response to concerns raised in the community that the radio waves posed a health risk. Officials said that the low-power equipment in the meters is certified by the Federal Communications Commission, ensuring that it complies with safety standards. They said familiar devices such as cell and cordless phones, walkie-talkies, and garage door openers produce stronger radio frequency fields and are positioned closer to the user for longer periods of time. As of May 1, the town had installed 6,680 electric meters and 883 water meters. The project is scheduled for completion next January.