| Id Number | 215 |
| Object Title | Electronic Circuit Board |
| Manufacturer | Unknown |
| Date of Object | 1984 |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 19.5 x 13.25 x 1 cm; 7 3/4'' x 5 3/4'' x 3/8'' |
| Material | Plastic; Metal |
| Id Number | 216 |
| Object Title | Micrologger |
| Manufacturer | Campbell Scientific, Inc. |
| Date of Object | Unknown |
| Model | CR21 |
| Serial Number | Unknown |
| Dimensions | 20.5 x 14.5 x 3 cm; 8'' x 5 3/4'' x 1 1/4'' |
| Material | Metal; Plastic |
| Id Number | 219 |
| Object Title | Salinity Meter |
| Manufacturer | Photoswitch |
| Date of Object | 1965 |
| Model | 160 |
| Serial Number | 33020 |
| Dimensions | 1 x 11.5 x 11 cm; 4'' x 4 1/2'' x 4 1/4'' |
| Material | Metal |