The Knick SE554X Memosen pH probe is a robust probe for mining applications.
It is a Memosens probe for pH applications. Extremely robust and long lasting. Great against a Endress Hauser CPS91D, if you are having reliability issues with the EH probes, please contact us and we can help!
More info: http://www.alvi.com.au/product/knick_-_se_554_memosens_ph_sensor/