Evershed and Vignoles Ltd recording dionic conductivity meter
Evershed and Vignoles Ltd recording dionic conductivity meter, reading 1-10 and 1-100 units, serial no.1203714.
- Object Number:
- 1980-742/1
- type:
- meter
Two Evershed and Vignoles recording dionic conductivity meters
Evershed and Vignoles Ltd recording dionic conductivity meter, reading 1-10 and 1-100 units, serial no.1203714.
Evershed and Vignoles Ltd recording dionic conductivity meter, reading 0-80 units, serial no.341016.