... 1 unit 4.Warranty : 1 year Digital Whiteness Meter Model: WSB-3 A & E Lab.Main ... Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point ... /TDS Meter, Incubator, shaker, Hotplate, Mixer, PCR, Oven, etc.Application:This instrument based on the principle of photoelectric effect ...