China Noble-Metal Thermocouple, Tungsten Rhenium Thermocouple, Base Metal Thermocouple Manufacturers, Factory

High Temperature Measurement

Tungsten-rhenium thermocouples (C, A, D type) have applications at 2200℃ environment, and our market share in this category ranks top 2 in China.Semiconductor noble metal thermocouples(S,R) well applied for photovoltaic(PV) cells processing,with top 1 market in China.

Custom Thermal Solutions

Types of platinum-rhodium thermocouples(S, R, B types) could customized,annual output amount is 20,000+ pieces, supplies to over 2k+ clients every year.And 100,000+ pieces of base metal thermocouples(K, N, E, J, T types) for over 3,000+ clients annually.

Strictly Quality Control And Competitive Prices

Being the committee member of the Standardization Administration of China TC124/SC1 and TC419 Technical Commission.With CE, ISO9001 and SIL2 certificated.Combined with our 29 years of experience, quality and cost are controllable even down to nails.We would like to provide favorable prices with satisfying services.

Product Center

As a result, pushing the industry to step forward.

S Type Semiconductor Thermocouple

Heating Temp Range: Ambient-1100℃
Max Heating Rate: 15℃/min
Max Cooling Rate: 5℃/min
Control...

Platinum Rhodium Thermocouple

Platinum Rhodium thermocouple with highest measurement accuracy of all, and be treated as standard thermocouple....

S Type Thermocouple

Thermoelement: Ptrh10-Pt
Type: Duplex type
Grade: II class ±1.5C or 0.25%t
Temperature:...

Industrial High-Temperature Type B Thermocouple

Thermoelement: Ptrh30-Ptrh6
Grade: II class ±1.5C or 0.25%t
Connection: Water-proof head...

$High Precision Refractory Metal Tube S-Type Precious Metal Flange Corundum Thermocouple$

High Precision Refractory Metal Tube S-Type Precious Meta...

Temperature Measurement Range：0~1300℃ (long-term), 0~1600℃ (short-term)
Thermocouple Wire Specification：Diameter...

High-Quality 4-Wire Pt100 RTD Temperature Sensor Thermome...

Grade: A or B class
Wire System: 4-wire Pt100
Wire material: PTFE wire
Diameter: Specify OD...

K Type Thermocouple With Dual HART & Ex Transmitters Wate...

Thermoelement: NiCr-NiSi
Grade: I class ±1.5℃ or 0.4%t;II class ±2.5℃ or 0.75%t
Connection:...

Type S Platinum-Rhodium Ceramic Thermocouple and Type K C...

The Type S product features the highest accuracy, optimal stability, a wide temperature measurement range, and a...

Product Application

The company is dedicated in researching, manufacturing and sale of thermal sensor and relevant parts.

Photovoltaic industry

learn more

Aviation industry

learn more

Chemical industry

learn more

Equipment manufacturing industry

learn more

Metallurgical industry

learn more

University Applications

learn more

About Us

The establishment of Chongqing Duchin Instrument CO., LTD was marked in 1995, located at No. 290 Fengshixing Road, Beibei District, covers area over 11’000m2.

The company specializes in the R&D, production and sales of temperature sensors and supporting devices. Its main products include thermocouples, resistance temperature detector(RTD), compensation wires, electric heaters, vacuum calibration devices for thermocouple, composite metal protection tubes, and we accept instrument control system projects order. The company has passed IS0 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 Occupational Health And Safety Management System, National Explosion-proof Product, Intellectual Property Management System, Credit Enterprise Of Grade AAA, EU CE(Consumer Electronics), RoHS(Restriction of Hazardous Substances), and SIL(Safety Integrity Level) Functional Safety certification.

Learn More