Dictograph Smoke Alarm
In the inside roof of our attic are a couple of metal devices with the name, Dictograph Products Inc. N.Y. These are place in a couple of areas in the old part of the attic. Our house had a couple of new additions in the past 20 years.
The Dictograph Model "F" was how the original owners of the house was able to be alerted if the temperature in the attic was over a certain amount. There is a sticker on the label that mentions 185 degrees as the fixed amount. This was otherwise known as a smoke sensor that would be attached to anouther unit that was installed someplace in the house.
Click on the image to see a larger version.
I am not going to remove the device as it doesn't have any potential risk to the house. It's a pretty cool thing to see when ever I am up in the attic. I something think what the original owners of the house had up in the attic and what were their worries as homeowners.