... 7-10days after received your payment 3.MOQ:1 unit 4.Certificate:ISO A & E Lab. Main Products ... PH/DDS/TDS Meter, etc. Characteristics: ² Portable, mini type, light and handy. Intelligent design, easy to operate, convient to ... is not necessary, but please keep the long lifetime light source without change, ² LCD display. Accurate, and ... demands. Portable Gloss Meter(Portable, mini type, light and handy)