Vintage Casella London Thermohygrograph & Chart Recorder

This vintage Casella London thermograph is a must-have for any collector of scientific instruments. Made from high-quality steel, this hydro thermograph is a true gem for those interested in scientific collectables.

Its chart recorder feature allows for precise temperature monitoring and recording, making it an excellent tool for research and development purposes. The thermohygrograph is a sub-type of hydro thermograph that measures both temperature and humidity levels. This instrument is perfect for those interested in meteorology and environmental science.

The Casella London thermograph is an excellent addition to any collection of scientific instruments and is a true piece of history. Fully working with selectable day/week/month charting via dip switches. Used in my Material Testing lab for a number of years.

Comes with spare pens and approximately 80 monthly charts.

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