Features:1) Stylish design perfect for home use2) First mass-produced desktop ultrasonic cleaning in the market3) Wide-diameter transducer for best cleaning result4) Applications: jewelry and watches

Features:1) Gem shortwave/long wave ultraviolet lamp2) Check whether a gemstone fluoresces to long wave orshortwave ultraviolet light3) Power input: 220V 50Hz4) Wavelength: SW 253.7nm5) Wavelength: LW

Product Name: UV LampPlace of Origin: ChinaFeatures:1) Gem shortwave/long wave ultraviolet lamp2) Check whether a gemstone fluoresces to long wave orshortwave ultraviolet light3) Power input: 220V 50H

Features:1) Gem shortwave/long wave ultraviolet lamp2) Check whether a gemstone fluoresces to long wave orshortwave ultraviolet light3) Power input: 220V 50Hz4) Wavelength: SW 253.7nm5) Wavelength: LW

The pocket thickness gauge is designed to measure the thickness of gem stone, leather, builiding material, metal plate and plastic plate etc. It is suited for quick, efficient, repeated measuring and

The model is designed to measure concentration in many kinds of liquids related sugar, such as fruit juice, canned food, condensed milk, liquid sugar and jam. With convertible two scales, its measurem

Features:1) with 200x magnification2) Easy to use and suitable to anyone who wants to check the fiber termination or the fiber connectors at home or at work3) True optical performance4) Integrated las

This instrument is designed for the measurement of refractive index (nD) and the average optical dispersion (NF-NC) of the transparent, the semitransparent and the solid matter.It also measures the Br

This instrument is designed for the measurement of refractive index (nD) and the average optical dispersion (NF-NC) of the transparent, the semitransparent and the solid matter. Connected with a circu