Turbidity meter from Hack instruments (add ref#)

TOC Shimadzu 5050A with auto sample injection 

Physicochemical data logged with a YSI 556 w.o. atm pressure (pH, Temp., Conductivity, Dissoved oxygen)

Continuous logging:

Redox (home made probes)

Reference electrodes Ag/AgCl/Cl- RE-1C, custom made (long wire insertion) from  Jiangsu Jiangfen Electroanalytical Instrument Co., Ltd. China + site for home made ref probes

Water level sensor (home made probes)