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1. Different material can choice, normal aluminum, pure aluminum, normal copper, pure copper. Their very study and good quality 2. Different color refractometer and different color boxes and types can choice. 3. Super big scale plate, very easy ......

It is used to measure refractive index ND and average color dispersion NF-NC of transparent and semi-transparent liquid or solid, also may be matched with constant temperature oven to measure refractive index ND with temperature 0 -70°C and measure sugar percent.  It is widely used in the oil ......

Used In: Kitchen, Factory, Sport, etc... Any place that need a good timer. Magnet Pad will make this timer can adsorp on metal. With Stand will make this timer can stand on your desk. When Countdown finished, the Timer will ring "Didididi....Didididi..." to remind......