I was looking for a specific astronomical relay timer to replace ones that had great experience with but they were old and starting to have problems. I contacted the manufacturer's rep directly for a price and decided to give Amazon a try. That's when I found "Big Frog Supply" and am I glad I did. There price was substantially below the manufacturer rep price and for exactly the same device. The delivery was efficient and quick. I would highly recommend Big Frog Supply if they offer anything you may be looking for ... especially an astronomical relay timer. Just great folks.