ADT 400-1 Relay Sprinkler Supervisory Transmitter

ADT 400-1 Relay Sprinkler Supervisory Transmitter

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Description (Brief)
ADT 400-1 Relay Sprinkler Supervisory Telephone Transmitter. Vertical wall mount wood box housing electrical controls; hinged cover and hinged frame on back. ADT (American District Telegraph) marking on label.
Location
Currently not on view
Object Name
Box, Control
alarm transmitter
Physical Description
wood (overall material)
metal (overall material)
Measurements
overall: 14 3/4 in x 9 1/4 in x 6 3/4 in; 37.465 cm x 23.495 cm x 17.145 cm
ID Number
1984.0255.15
catalog number
1984.0255.15
accession number
1984.0255
Credit Line
from Thomas Neely, Jr.
See more items in
Work and Industry: Electricity
Data Source
National Museum of American History
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