... flame inoculation2.sterile sampling vale and bottom valve3.PH, DO, temp. sensor on lower side, side glass, top with foam and level ... .02 pH;4.It has auto alarm function.5.pH sensor and signal transmission line, HAMILTONDO1. On-line check and measure ... %, precision ±1%;3.It has auto alarm function;4.DO sensor and signal transmission line, HAMILTONFoam control1. Automatically control and automatically ...