Humidity Sensors
| Id Number | 326 |
| Object Title | Thermo-Hygrograph |
| Manufacturer | R. Fuess Berlin-Steglitz |
| Date of Object | Unknown |
| Model | 18 |
| Serial Number | A 8856 |
| Dimensions | 28 x 25.5 x 13 cm; 11'' x 14'' x 5'' |
| Material | Metal |
| Id Number | 337 |
| Object Title | Assman Psychrometer |
| Manufacturer | Casella |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | 4098? |
| Dimensions | 43 x 9 cm; 17'' x 3 1/3'' |
| Material | Metal; Plastic; Glass |
| Id Number | 340 |
| Object Title | Weather Station |
| Manufacturer | Woodkrafter Kits |
| Date of Object | 1987 |
| Model | 16504 |
| Serial Number | Unknown |
| Dimensions | 14.5 x 8 cm; 5 3/4'' x 3 1/8'' |
| Material | Wood; Paper |