I am currently supporting a gentleman with dementia, he lives at home with his daughter who works full time. He enjoys going out for a walk, currently has a GPS tracking device but doesn't always take it with him and when he does, it's not always accurate. Does anyone have any experience of using these types of devices who could recommend one? He went out yesterday, the dog got away from him and social services and the police had to be called. He did arrive home safely but we need to put measures in place to safeguard him.