High Accuracy Bench Top Water Hardness Meter Product Numbers: PHME-200 Product Specifications: (0 ~ 10)mmol/L; (0 ~ 401)mg/L(Ca); Product Units: mmol/L, mg/L (CaCO3), mg/L (CaO), mmol/L (Boiler) and mg/L (Ca). Product Remark: China Water Hardness Meter Manufacturer |