Callendar Electrical Temperature Indicator, 1894

Made:
1894 in London
maker:
The Cambridge Scientific Instrument Company
and
Hugh Longbourne Callendar
SMG00229122

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SMG00229122
Science Museum Group
© The Board of Trustees of the Science Museum

Callendar patent electrical temperature indicator, in mahogany case fitted with dry cell batteries, by The Cambridge Scientific Instrument Company, London, England, 1894

Details

Category:
Heat
Object Number:
1950-259
Materials:
bitumen, brass (copper, zinc alloy), carbon, copper (metal), glass, iron, ivory, mahogany (wood), mica, paper (fibre product), silver plated, steel (metal), textile and wood (unidentified)
type:
temperature indicator dial (electrical/electronic)
taxonomy:
  • measuring devices
  • measuring devices
credit:
Leica Microsystems Cambridge Ltd