3 1/2 digit LED display with auto temperature compensation,combination pH electrode & RTD probe,( Table model )

Didital pH Meter SL-313

3 1/2 digit LED display with manual temperature compensation, combination pH electrode,( Table model )

Digital ph conductivity & Temperature meter SL 315

For measurement of pH, Conductivity and Temperature. 3 digit LED display with pH combination electrode. Cond cell and temoerature probe (Table Model)