... . Cost price and performance 4.DO probe produced by us Benchtop Dissolved Oxygen Meter JPSJ-605F Model SpecificationsJPSJ-605FParametersConcentration/Saturation/°CRangeDO0 ... , outside - negative)Dimension (mm), Weight(kg)332×265×275, 3 Benchtop Dissolved Oxygen Meter JPSJ-605F