📊 Item Specifics
| Field | Value |
|---|---|
| Brand | Ohio Thermometer Co. |
| Type | Hygrometer / Psychrometer |
| Model | Wet & Dry Bulb |
| Material | Plastic / Glass |
| Country/Region of Manufacture | United States |
| Vintage | Yes |
| Application | Humidity Measurement |
| Condition | Used |
📝 Description
Vintage wet and dry bulb hygrometer (psychrometer) set manufactured by The Ohio Thermometer / Sign Company and distributed by Ideal School Supply Company.
This is a classic classroom or laboratory instrument used to measure relative humidity using dual thermometers and a reference chart.
Includes original box and instruction sheet as shown. Unit appears complete with both thermometers and wick assembly present.
Condition is good vintage with light cosmetic wear from age. Box shows minor wear and writing on exterior. Please review all photos carefully for exact condition and contents.
Untested. Sold as a vintage scientific instrument and display/collectible piece.
📏 Specs
- Approx size: ~10–11 inches tall
- Dual thermometer setup (wet & dry bulb)
- Includes relative humidity chart
- Made in USA
Seller Disclaimer
I do my best to photograph and describe each item as accurately as possible. Please review all photos carefully, as they are considered part of the description and represent the exact item you will receive.
Items are not fully inspected or tested unless specifically stated in the listing description. Any included accessories, components, or contents are limited to what is shown in the photos.
Condition can be subjective, so please zoom in and review images carefully to ensure the item meets your expectations.
All items are sold AS-IS based on the information provided in the listing and photos. If you have questions or need additional pictures, please feel free to reach out before purchasing.
Items ship the next business day and are packed with care. Once a package is with the carrier, shipping delays or handling issues are outside my control.
Thank you for your business!