1.Digital Whiteness Meter; 2.Warranty:ISO; 3.Payment:100%T/T in advance; 4.MOQ: 1 pc A & E Lab. Main Products: Atomic ... Refractometer, PH/DDS/TDS Meter, Incubator, shaker, Hotplate, Mixer, PCR, Oven, etc.Digital Whiteness Meter Model:AE-WSB-3ACharacteristics:1. Chemical & Building materials ... 1Stability0.2/10minRepeatabilityC Power Supply220V+/-10%Measuring Condition0/dd/0 Digital Whiteness Meter