... Warranty:1 year. 4.MOQ: 1pc. A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, ... Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter ... 11AW Technical Dates:1.Single Point Push-Button Calibration:DDS-W series with single point calibration function, you need ...