Sino Science& Technology Co.Ltd.

Model RBF020F is used for measuring standard DOT3 brake fluid(DOT3 standard fluids scale), boiling point and w

The kinds of gem can be precisely determined in accordance with the measured value of refractive index because

This instrument is designed for the measurement of refractive index(nD) and the average optical dispersion(NF-

101-01-030 metric inch accuracy Order NO. range Order NO. range Chrome-plated frame Painted frame Chro

ZGR series has its own light source. With the built-in light source, it makes more convenient to use when in a

The refractometer is designed with set-inillumination light ***** can be used to test when the outside light i

MODEL:WXG-4　DISC POLARIMETER Characteristic: visual aim; manual measure; easy operation Measuri

ZGR series has its own light source. With the built-in light source, it makes more convenient to use when in a

10X and 20x The model with a 10x and a 20x magnifier on the two ends. It will meet your different needs. You c

SinoTech company is especially professionalized in the field of optical instruments. For your choice , we prov

Specifications: Measuring Range:0-12mm/0-0.5" Resolution:0.01mm/0.0005" Accuracy:±0

The models with a high resolution Brix scale are developed for most general purpose work. The RHB-32ATC has Au

The models have only one unit system: °C. With the indication of the percentage we may know the fre

Model RBF020F is used for measuring standard DOT3 brake fluid(DOT3 standard fluids scale), boiling point and w

This model is specially designed to measure the refractive index in the mineral oil or in the brix solution. B

MODEL:PDR28S SCALES:SALINITY, REFRACTIVE INDEX RANGE: SALINITY 0-28% REFRACTIVE INDEX 1.3330-1.3900 DI

The Brix concentration, Refractive index or other parameters are always needed in lab or our life. The traditi

The spectroscope is an important tool of the modern gemmologist. This concerns the infrared or near infrared s

Dichroscopes show whether or not a stone is dichroic (reflects 2 colors). This can be helpful in differentiati

Rubies (both genuine and synthetic) appear brilliant red under the filter. Synthetic blue spinel appear yellow

Our Digital Gem Refractometer is a nice optical instrument which will give a reading of the refractive index o

GEM Shortwave/Longwave Ultraviolet Lamp. Check whether a gemstone fluoresces to longwave or shortwave ultravio

ILLUMINATED LOUPE(LED LIGHT) 10X-18MM The loupe is widely used in the jewellery ***** LED light will enable y

The spectroscope is an important tool of the modern gemmologist. This concerns the infrared or near infrared s

LCD display . Insert panel. simple appearance, two button batteries, used for longer time. Technical paramete

ZGR series has its own light source. With the built-in light source, it makes more convenient to use when in a

The tool case is well-organized. It can hold almost all the necessary gem tools in one case, thus will save yo

The spectroscope is an important tool of the modern gemmologist. This concerns the infrared or near infrared s

20x. The loupe is widely used in the jewellery ***** 20x magnifier will enable you have a close observation of

You can have more choices in SinoTech! SinoTech is a professional manufacturer of refractometers for more than

The models have only one unit system: °C. With the indication of the percentage we may know the fre

Gemological instrument is professionally designed for testing or identifying the gemstone. It is a good instru

Compared with the traditional handheld refractometers, the digital refractometers have the digital readout and

Polariscopes are used to quickly and easily check if gemstones are single or double refracting. It Is very use

This compact measuring instrument is best suited for measuring the pH-values in many different solutions. Spe

The soil pH meter is the preferred method for determination of soil pH and the only one adaptable to the buffe

Features: Measure and display the indoor/outdoor temperature and indoor humidity Automatically memorize the

Optical system:Viewing direction 0° Viewing angle 45° Depth of observation 30mmï&

132-01-730 metric inch accuracy resolution Order number range Order NO. range ZX01730 0-25mm ZX01731 0-

Order No. Movement Graduation Value Diameter of Holding Bar 0421.005 Radial 0~10 Axial 0~6 Radial 0.01 A