MONROEVILLE, Pa.--(BUSINESS WIRE)--Respironics announced today that it has voluntarily recalled 4,992 infant apnea monitors. This recall of the SmartMonitor®2 models 4002 and 4003 is being conducted due to the possibility of an audible alarm failure. Caregivers or parents who are using a SmartMonitor 2 Infant Apnea Monitor for their infant, should contact their homecare provider immediately to determine if their device is affected. However, they should continue using the apnea monitor until it is replaced, unless directed otherwise by a physician.