I am thinking about getting my grandma a driveway alarm for Christmas. She never knows when someone pulls into her driveway and if she is in the livingroom, she doesn't hear when someone knocks on the door at the other end of the house. Anyone have one they would recommend?

It's called a dog.

My nephew has one although I couldn't tell you what brand. I know it works well though. My son next door to me has a camera aimed down the driveway and a little monitor next to his TV. I'd rather have the alarm.

I have one from Tractor supply, got it on sale around this time last year!

It's called a dog.

Guinea hens, don't have to walk them and nobody cares if you eat them

Grandma doesn't like animals, so dogs and guinea hens are out.

Harbor Freight has one on sale for the next 3 days for $9.99. :)

We got ours at Radio Shack.