Electronic Medication Reminder Devices fall into two main categories.
The first are reminder alarms. The best examples of these are watches that have beween 5 and 12 programmable alarms that go off during the day.
The second are medication dispensers with alarms.
The MedCenter Monthly Medication System with Reminder Alarm holds a full month of pills, and up to 4 doses per day. It has 4 separate alarms that are LOUD, and the alarms reset every day at midnight. No monthly fees with this unit. Approx. $59. You can also get this product without the reminder alarm.
Check out the full range of electronic medication reminders at Amazon.com.
Here’s a video about how the medical alarm watch works.