I bought two of these many years ago, 12+ if I remember correctly. They work perfectly to this day. The only issue that has recently arisen is that they no longer display the time or any other indication when plugged in. However, they function normally. When unplugged, all indications appear normally. On the downside, I will mention the very small and hard-to-read screen when light falls on it. The instructions are also very vague and rough. However, by experimenting, you learn how to use it. I would buy it again or another from the same company.