title: Choosing a high-tech alerting device.  Look for waterproof gadgets that are easy to use, and companies that don't require long-term contracts.
mesh_terms: D002318:Cardiovascular Diseases / Q000517:prevention & control; D003142:Communication; D034201:Computers, Handheld; D004630:Emergencies; D004631:Emergency Medical Service Communication Systems; D004633:Emergency Medical Tags; D004867:Equipment Design; D015438:Health Behavior; D006801:Humans; D061214:Patient Safety; D017751:Safety Management / Q000379:methods*