PH Meter, DDS Meter, TDS Meter, Multipara Meter. A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), ... , Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, etc. ... 150 hoursDimensions & Weight180(L)mm×30(Dia.)mm & 85g Portable PH Meter (ISO,CE Passed)