| Time Period Manufactured | Pre-1930 |
|---|---|
| Maker | Tyco |
| Country of Origin | United States |
Check the listing for details. 1919 Tyco's Hygro-Autometer. Made in United States. Listed at 550.00 USD. The left Dry-Bulb shows temperature unrelated to systems' humidity. Using the difference of both temperatures, scroll to corresponding data index. Once aligned, the Dry-Bulb temperature can be found in the first column of numbers on data plate.
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