Wind up Fire Alarm, Vanguard V2-25FT, Vintage, Antique, Heat Alarm

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Wind up Fire Alarm, Vanguard V2-25FT, Vintage, Antique, Heat Alarm:
$9.99

This Vanguard Protection Systems Model V2-25 FTvintage fire/heat alarm is from the 1960\'s. The gray dome around it is the bell. There is a wind up handle on the back. The unit is wound up and mounted on a wall or ceiling. When the fuse (silver disk on the to in the photo) is exposed to the temperature stamped on the face (175 degrees F) it melts and releases the bell to start ringing. It\'s quite loud.