China testing equipment Manufacturers, Top Mechanic Factory

Handheld Contact Lenses Hydration Refractometer ATC, Hydration Tester for Contact Lenses Water Content

The RHL35-80A Handheld Contact Lenses Refractometer is design specifically to measure the percentage of water content in contact lenses, with a measurement range of 35 to 80% and an accuracy of ±1%. The main body of the instrument is made of copper materials to maximize measurement accuracy and durability. This model is equipped with an Automatic Temperature Compensation function (ATC). We also offer an economical version without ATC. Measurement Specifications Scale(s) Ranges Resolution Accuracy Water 35 to 80% 1.0% ±1%

Handheld Refractive Index Refractometer ATC, Refractive Index Meter for Sugar Content 1.435-1.52nD

The RHN1.44-1.52A Handheld Refractive Index refractometer is used to measure the refractive index in liquids, with a measurement range of 1.435 to 1.52 nD, and an accuracy of ±0.001ND. This model is suitable for measuring medium to high concentration solutions, including concentrated fruit and vegetable juices, beverages, and other food products. The main body of the instrument is made of copper to maximize accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Range Redolution Accuracy Refractive Index 1.435 to 1.52nD 0.001nD ±0.001nD

Handheld Soymilk Refractometer ATC for Soymilk Concentration

The RHD-25A model soymilk refractometer is design especially for the quality control of soymilk products. It measures the percentage of solids in soymilk, with a measurement range of 0-25% and an accuracy of ±1%. The main body of the instrument is made of copper material to maximize measurement accuracy and durability. This model is equipped with an Automatic Temperature Compensation function (ATC). We also offer an economical version without ATC. Measurement Specifications Scale(s) Ranges Resolution Accuracy SM 0 to 25% 1.0% ±1%

2 in 1 Low Concentration Salinity Refractometer with ATC, Portable Accurate Salinity Meter for Aquaculture

The RHS-10A handheld Salinity refractometer is used to measure the salt concentration and density in liquids. It is equipped with two sets of scales: salinity and density values, with specific parameters shown in the table below. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Range Resolution Accuracy Salinity 0 to 100‰ 1‰ ±1‰ Salt Density 1.000 to 1.070 g/mL 0.001 g/mL ±0.001 g/mL

Handheld Honey Refractometer ATC for Honey Moisture

• The RHH12-30A handheld honey refractometer is suitable for measuring the moisture content of honey, with a measurement range of 12% to 30% honey moisture and an accuracy of ± 0.1%. • The instrument body is made of copper material to maximize measurement accuracy and durability. • This model is equipped with Automatic Temperature Compensation (ATC) function, and we also offer an economy version without ATC. Measurement Specifications Scale(s) Ranges Min. Division Accuracy Honey 12 to 30% 0.1 ±0.1

Handheld Medical Protein Refractometer ATC for Serum P Urine SP.G Refactive Index

The RHC-200A Handheld Medical Protein Refractometer is a portable tool used in the medical and healthcare industry. measures the specific gravity of urine, serum protein and refractive index of human beings and animals. The measurement ranges can be found in the table below. The main body of the instrument is made of copper material to maximize measurement accuracy and durability. This model is equipped with an automatic temperature compensation function (ATC). We also provide an economical version without ATC. Measurement Specifications Scale(s) Ranges Resolution Accuracy Serum P 0 to 12g/dl 0.2 ±0.2 Urine SP.G 1.000 to 1.500sg 0.05 ±0.05 Refactive Index 1.330 to 1.360 0.0005 ±0.0005

Handheld Salinity Refractometer with ATC, Low Concentration Salinity Tester for Aquaculture 0-28% Salt Content

The RHS-28A handheld Salinity refractometer is used to measure the salt concentration in liquids, with a measurement range of 0 to 28% Salinity. This model can be used in aquaculture, food processing, and laboratories. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Range Resolution Accuracy Salinity 0 to 28% 0.2% ±0.2%

Handheld Honey Refractometer with ATC, Honey Meter for Moisture Content

The RHH13-25A handheld honey refractometer is suitable for measuring the moisture content of honey, with a measurement range of 13-25% Water and an accuracy of ±0.1% The main body of the instrument is made of copper material to maximize measurement accuracy and durability. This model is equipped with Automatic Temperature Compensation (ATC). We also offer an economical version without ATC. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Water 13 to 25% 0.1 ±0.1%

3 in 1 Honey Refractometer with ATC, Honey Meter for Brix Baume Water

The RHB-90A Handheld Honey Refractometer is the ideal tool for honey quality control. It measures the moisture content, Baume degree and sugar content of honey. This model is equipped with Automatic Temperature Compensation (ATC). We also offer an economical version without ATC. Highly Durable - main body is made of copper. Improved Accuracy - optical crown glass prism to maximize accuracy. Measurement Specifications Scale(s) Ranges Min. Division Accuracy Brix 58 to 90% 0.5% ±0.5% Baume 38 to 43 0.5 ±0.5 Water 12 to 27% 1.0% ±1%

Automotive Coolant Refractometer ATC, Coolant Tester for Ethylene, Propylene, Battery Fluid

The RHA-200A model handheld antifreeze and Battery acid refractometer measures the freezing point temperature (in ℃) of ethylene glycol or propylene glycol based automobile antifreeze, and the specific gravity (SG) of battery fluid. The specifications of these measurement scales are listed in the table below. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -60℃ to 0℃ 5℃ ±5℃ Propylene -50℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.100 to 1.400 SG 0.01SG ±0.01SG

3 in 1 Coolant Refractometer with ATC, Antifreeze Coolant Tester for Battery Fluid Concentration

The RHA-501TA model handheld coolant and battery acid refractometer measures the freezing point temperature (in ℃) of ethylene glycol or propylene glycol based automobile antifreeze, and the specific gravity (SG) of battery acid. The specifications of these measurement scales are listed in the table below. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -50℃ to 0℃ 5℃ ±5℃ Propylene -50℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.100 to 1.400 SG 0.01SG ±0.01SG

2 in 1 Salinity and Brix Refractometer ATC, Salinity Meter Brix Meter for Salt Content and Sugar Content

The RHBS-28A handheld salinity refractometer is used to measure the concentration of liquids containing soluble Salts (sodium chloride), and it can also measure the Brix concentration of solutions. The measurement parameters are shown in the following table. The main body of the instrument is made of copper material to maximize measurement accuracy and durability. This model is equipped with an Automatic Temperature Compensation function (ATC). We also provide an economical version without ATC. Measurement Specifications Scale(s) Range Resolution Accuracy Salinity 0 to 28% 0.2% ±0.2% Brix 0 to 30% 0.2% ±0.2%

Inline Refractometer for N-methylpyrrolidone (NMP) Concentration

The ZXRN0-100 model inline refractometer is designed to measure the concentration of N-methylpyrrolidone (NMP). Specifically designed for lithium battery manufacturing and related chemical processing; High durability saphhire prism and stainless steel body; Equipped with Automatic Temperature Compensation (ATC); Provides three readings: NMP, nD, Temperature. Specifications found below. Measurement Specifications Measurement Parameters Range Resolution Accuracy NMP Concentration 0.00-100.00% 0.01% ±0.01% Refractive Index (nD) 1.33299 - 1.47285 0.00001 ±0.00001 Temperature 5°C to 100°C 1℃ ±1℃

Inline Brix Refractometer for Sugar Content Concentration

The ZXRB0-93 inline Brix refractometer is specifically designed for sugar content measurement, and liquid concentration monitoring in general Excellent for food and beverage processing, and for industrial solution quality control; High durability saphhire prism and stainless steel body; Equipped with Automatic Temperature Compensation (ATC); Provides three readings: Brix, nD, temperature. Measurement specifications lidted below. Measurement Specifications Measurement Parameters Range Resolution Accuracy Brix 0.00-93.00% 0.01% ±0.01% Refractive Index (nD) 1.33299 - 1.52620 0.00001 ±0.00001 Temperature 5℃ to 100℃ 1℃ ±1℃

4mm Two-Way 120° Articulating Borescope, Industrial Endoscope Videoscope

The two-way articulating industrial borescope is a compact, high-precision inspection tool with dual-directional bending, ideal for visual inspections in confined or complex spaces across industries such as aviation, automotive repair, and infrastructure maintenance. Probe as thin as 4 mm in dismeter, up to 3 m in length 3.5-inch Monitor with reinforced glass and UV protection IP67 rated, waterproof up to 1m (3.3ft) Specifications Probe Diameter Probe Length Articulation Angle 4 mm (0.157 in) 1m (3.28 ft) 2-way ±120° 6 mm (0.236 in) up to 3m (9.84 ft)

6mm Four-Way 120° Articulating Borescope, Industrial Endoscope Videoscope

The four-way articulating industrial borescope is a compact and durable inspection device featuring flexible probe movement in four directions. It delivers clear imaging, easy operation, and multi-angle observation capabilities, making it ideal for precise inspections in aerospace, automotive maintenance, construction, and other industrial applications. - 4-way up, down, left and right articulation - Probe as thin as 6 mm in dismeter, up to 3 m in length - 3.5-inch monitor with reinforced glass and UV-resistant design - IP67 Waterproof up to 3.3FT (1M) / Dustproof Specifications Diameter Length Articulation Angle 6 mm (0.236 in) up to 2m (2.56 ft) 4-way ±120° 7.5 mm (0.295 in) up to 3m (9.84 ft)

Portable Gemstone Refractometer, Jewlery Refractometer

The RHG-181 Gemstone Refractometer is a portable optical instrument designed to measure refractive indices from 1.30 to 1.81, enabling fast identification of gemstone types, differentiation between natural, synthetic, and treated stones, and analysis of optical properties such as birefringence and crystal orientation—making it a practical tool for jewelers, gem traders, and inspection agencies. Specifications Measurement Range Resolution Dimensions Weight 1.30-1.81 0.01 30*70*130mm 0.4kg

Inline Refractometer for Ethylene Glyco / Antifreeze

The ZXRE0-90 inline refractometer measures the concentration of ethylene glyco or ethylene glyco based antifreeze. Widely used in automotive antifreeze production and related chemical processing; Sapphire prism, 316L stainless steel body, and IP65-rated; Equipped with automatic temperature compensation (ATC); Provides three readings: EG concentration, nD, and temperature. Specifications found below. Measurement Specifications Measurement Parameters Range Resolution Accuracy Ethylene Glyco Concentration 0.00-90.00% 0.01% ±0.01% Refractive Index (nD) 1.33299 - 1.43205 0.00001 ±0.00001 Temperature 5℃ to 100℃ 1℃ ±1℃

10x Gem Magnifier for Gemstone Inspection, Jewelry Magnifying Glass

The RHGX Gem Magnifier is a precision optical instrument designed for detailed observation of gemstone inclusions, surface features, and treatment indicators, widely used in gem identification, appraisal, processing, and quality inspection. - Magnification Range: 10X–80X total magnification for detailed inspection at varying levels. - Field of View Diameters: φ18, φ15, φ6, φ5, φ4, φ3 mm for different magnification settings. - Dimensions / Weight: 28 × 18 × 36 cm; 6.1 kg – suitable for desktop lab or appraisal use.

Bench Top Gem Polarimeter, Gemstone Polariscope

The gem polariscope is a non-destructive optical tool used to identify gemstone authenticity, distinguish between isotropic and anisotropic materials, and analyze optical properties such as refraction type, axiality, and optical sign.

Multiple Portable Socket outlets Mechanical Strength Test Device

ZLT-MS, to determine the mechanical strength test on multiple portable socket outlets, in according to IEC60884 1 figure 29,

Conductive Graphene Paste for Lithium Battery， supercapacitor,nickel hydrogen battery

Graphite sheet is one kind of material can be applied in a large field.

Brix Refractometer with ATC, Standard Refractometer for Brix, Sugar Meter 0-32% Brix

The RHB-32A model handheld brix refractometer measures sugar concentration level in the liquid. It features a measurement range of 0 to 32% Brix, with an accuracy of ±0.2%. It is suitable for measuring Brix levels in most common solutions, including fruit and vegetable juices, beverages, food products, and cutting fluids. The main body of the instrument is made of copper to maximize accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Range Resolution Accuracy Brix 0 to 32% 0.2% ±0.2%

3 in 1 Antifreeze Refractometer ATC, Coolant Tester for Ethylene Propylene Battery Fluid

The RHA-301A model handheld antifreeze and Battery acid refractometer measures the freezing temperature (in ℃) of ethylene glycol or propylene glycol based automobile antifreeze, and the specific gravity (SG) of battery acid. The specifications of which are listed in the table below. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -50℃ to 0℃ 5℃ ±5℃ Propylene -50℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.150 to 1.300 SG 0.01SG ±0.01SG

Low Concentration Brix Sugar Refractometer with ATC, Brix Meter for Low Sugar Content 0-5% Brix

The RHB-5A model handheld Brix refractometer measures sugar concentration level in the liquid. It features a measurement range of 0 to 5% Brix, with an accuracy of ±0.1%. This model is suitable for measuring Brix levels in low sugar concentration solutions, such as low-sweetness juices and beverages. The main body of the instrument is made of copper to maximize accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Brix 0 to 5% 0.1% ±0.1%

Handheld Coolant Refractometer ATC for Ethylene Propylene Antifreeze Battery Fluid

The RHA-405A handheld coolant and battery fluid refractometer measures the freezing temperature (in ℃) of automotive antifreeze based on ethylene glycol or propylene glycol, as well as the specific gravity (SG) of battery fluid. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -50℃ to 0℃ 5℃ ±5℃ Propylene -50℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.150 to 1.300 SG 0.01sg ±0.01sg

Automotive Coolant DEF Refractometer ATC, Adblue Urea Concentration Meter for Ethylene Propylene Battery Fluid DEF

The RHAN-737A handheld coolant, DEF(Adblue) and battery fluid refractometer measures the freezing temperature (in ℃) of automotive antifreeze based on ethylene glycol or propylene glycol, the urea concentration in DEF (Adblue), and the specific gravity (SG) of battery fluid. This model is a universial tool that is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available for a lower cost. Measurement Specifications Scale(s) Ranges Resolution Accuracy Adblue 0-35% 1% ±1% Ethylene -50℃-0℃ 1℃ ±1℃ Propylene -50℃-0℃ 1℃ ±1℃ Battery Fluid 1.100-1.300SG 0.01SG ±0.01SG

Portable Coolant Refractometer ATC, Coolant Tester for Ethylene Propylene Battery Fluid Celcius

The RHA-303A handheld coolant and battery fluid refractometer can be used to measure the freezing point temperature (in ℃) of automotive antifreeze based on ethylene glycol or propylene glycol, as well as the specific gravity (SG) of battery fluid. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -70℃ to 0℃ 5℃ ±5℃ Propylene --60℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.100 to 1.400 SG 0.01SG ±0.01SG

Low Concentration Brix Sugar Refractometer with ATC, Brix Meter for Low Sugar Content 0-10% Brix

The RHB-10A model handheld Brix refractometer measures sugar concentration level in the liquid. It features a measurement range of 0 to 10% Brix, with an accuracy of ±0.1%. This model is suitable for measuring Brix levels in low sugar concentration solutions, such as low-sweetness juices and beverages. The main body of the instrument is made of copper to maximize accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Brix 0 to 10% 0.1% ±0.1%

Automotive Antifreeze Refractometer ATC, Antifreeze Meter for Freezing Point Battery Fluid Cleaner

The RHA-504A handheld coolant and battery fluid refractometer is used to measure the freezing point temperature (in ℃) of automotive antifreezes based on ethylene glycol or propylene glycol, the freezing point of windshield cleaning fluids, and the specific gravity (SG) of battery fluids. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Ethylene -60℃ to 0℃ 5℃ ±5℃ Propylene -50℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.100 to 1.400 SG 0.01sg ±0.01sg Cleaner -40 to 0℃ 5℃ ±5℃

Handheld Antifreeze Refractometer ATC for Antifreeze Freezing Battery Fluid

The RHA-800A handheld antifreeze and battery fluid refractometer measures the concentration percentage and freezing temperature (in ℃) of automotive antifreeze, and the specific gravity (SG) of battery fluid. The measurement parameters are shown in the following table. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Measurement Range Resolution Accuracy Antifreeze -0 to 100% 5% ±5% Freezing -60℃ to 0℃ 5℃ ±5℃ Battery Fluid 1.100 to 1.400 SG 0.01sg ±0.01sg

Low Concentration Sugar Brix Refractometer with ATC, Sugar Meter for Low Sugar Content 0-18% Brix

The RHB-18A model handheld Brix refractometer measures sugar concentration level in the liquid. It features a measurement range of 0 to 18% Brix, with an accuracy of ±0.1%. This model is suitable for measuring Brix levels in low to medium sugar concentration solutions, such as low-sweetness juices and beverages, and cutting/grinding fluids. The main body of the instrument is made of copper to maximize accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available at a lower cost. Measurement Specifications Scale(s) Range Resolution Accuracy Brix 0 to 18% 0.1% ±0.1%

Handheld Antifreeze DEF(Adblue) Refractometer ATC, Coolant Meter for DEF Urea Concentration, Battery Fluid

The RHAN-747A handheld antifreeze and DEF(Adblue) refractometer measures the freezing temperature (in ℃) of automotive antifreeze based on ethylene glycol or propylene glycol, the urea concentration in DEF (Adblue), and the specific gravity (SG) of battery acid. The specific parameters are shown in the following table. This model is a universial tool that is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. This model has Automatic Temperature Compensation (ATC). Models without ATC are also available for a lower cost. Measurement Specifications Scale(s) Ranges Resolution Accuracy Adblue 20% to 40% 1% ±1% Ethylene -50℃ to -10℃ 1℃ ±1℃ Propylene -50℃ to -10℃ 1℃ ±1℃ Battery Fluid 1.200 to 1.300SG 0.01SG ±0.01SG

Automotive Coolant Refractometer with ATC, Coolant Tester for Freezing Point, Battery Fluid Concentration

The RHA-737A handheld coolant and battery fluid refractometer measures the concentration percentage of automotive coolant, the freezing point temperature (℃) of automotive coolant, and the specific gravity (SG) of battery fluid. The parameters of these measurement scales are shown in the table below. This model is commonly used in automotive maintenance and battery servicing. The instrument body is made of copper material to maximize measurement accuracy and durability. It also has an Automatic Temperature Compensation function (ATC), which can provide accurate readings under different ambient temperatures. Measurement Specifications Scale(s) Measurement Range Min. Division Accuracy Ethylene -60 to 0℃ 3℃ ±3℃ Propylene -50 to 0℃ 3℃ ±3℃ Battery Fluid 1.150 to 1.300 SG 0.005sg ±0.01sg

All products