VINTAGE EVERGARD 1950's FREON FIRE ALARM

Description

Vintage 1950s Evergard (DuPont Freon) Fire Alarm
Model # SPL-15V
Measures: 6 1/2"tall, and just under 5" across.
Made by Evergard Fire Alarm Company in Philadelphia.
It works by a temperature sensing fuse that activates the freon powered horn when the preset temperature is reached.
The sight glass bubble  indicates the freon is  charged.
Condition is "Used". Shipped with USPS First Class.