You should go with a simple, cost effective and non-obtrusive device that can warn you anywhere. A lot will first depend on what kinds of features you are looking for. Does the medical alert system support home VOIP telephone services? Is there a waterproof call button? Do they operate 24/7? Check with the supplier if the equipment malfunctions, does someone come to fix it? It’s a good idea to look into the client reviews about the medical alert system. This site http://www.medicalalertadvice.com/ has a lot of good information to help you out.