Optical sensor based on absorptiometry technology Ranges of measurmentMES5 Suspended solids: 0-50 g/lVB5 Sludge blanket: 0-100%Turbidity: 0-400 FAU Temperature measurment: -5°C à +60°C Rugged and compact body made in DELRIN Modbus Communication RS485 or SDI12 Bare wire or Fischer connector outlet