Jewelry Refractometer

タイトルまたは説明

1.Hard CZ measuring prism.Scale range:1.***1.*5.
2.Accuracy: ≦±0.**3
3.Professional optical design. Aluminum alloy table.
4.Internally installed the monochromatic light.
5.There are two ways of ing the voltage:7﹟batteries and DC3V direct current suply(AC**0—**0V).
6.2ml refringent oil(1.*8±0.**5) with unique design of the bottle(Proprietary technology ZL***********0.7),
7.It is much safer ,much ecnomical and more convinent.
8.One year warranty and lifetime maintenance


Polariscope with *9mm heavy calibre;
★With rotatable sample platform,convenient to observe the interference pattern;
★Attached interference ball,used to observe the interference pattern;
★With white LED cold sources,help tt protect the polarizer;
★Voltage:DC3V(**0V***0V) external power supply;
★One year warranty and lifetime maintenance