Description
BOW Type Thermocouple Surface Measuring Sensor, 12″ Long with 1 Meter Cable, Temperature Range -50°C to 800°C
High-Performance Surface Temperature Sensor for Industrial Process Monitoring
The “Ji” Japsin Instrumentation BOW Type Thermocouple Surface Measuring Sensor is a specialized temperature measurement device designed for accurate surface temperature monitoring across a wide range of industrial applications. Featuring a robust Bow Type sensing element, 12-inch long probe, 1-meter extension cable, and a broad temperature measurement range of -50°C to 800°C, this thermocouple sensor is ideal for measuring temperatures on pipes, vessels, curved surfaces, machinery, heated plates, rollers, and various industrial process equipment.
Surface temperature measurement is essential in industries where process efficiency, equipment safety, product quality, and energy management depend on precise thermal monitoring. The unique Bow Type sensing design provides excellent contact with curved and irregular surfaces, enabling fast response and reliable temperature measurement without requiring insertion into the process media.
Whether used in manufacturing plants, power stations, chemical processing facilities, steel industries, maintenance departments, HVAC systems, or calibration laboratories, the “Ji” Japsin Instrumentation Bow Type Thermocouple offers dependable performance and long-term reliability.
Designed for Accurate Surface Temperature Measurement
Many industrial processes require direct measurement of equipment surface temperatures rather than fluid temperatures. Surface temperature often serves as an important indicator of equipment performance, heat transfer efficiency, and operational health.
The Bow Type Thermocouple is specifically engineered to provide accurate contact temperature measurement by maintaining firm and stable contact with the measured surface.
Key Advantages
- Fast temperature response
- Excellent surface contact
- Accurate readings
- Reliable performance
- Easy operation
- Suitable for continuous industrial use
Its specialized design helps ensure accurate temperature monitoring even on challenging surfaces.
Wide Temperature Measurement Range
The sensor is capable of measuring temperatures from -50°C to 800°C, making it suitable for both low-temperature and high-temperature industrial applications.
Temperature Range
- Minimum Temperature: -50°C
- Maximum Temperature: 800°C
This broad measurement range allows the thermocouple to be used in numerous industrial processes where temperature monitoring is critical.
Typical Temperature Applications
- Heated equipment
- Industrial ovens
- Steam lines
- Hot process pipes
- Heat exchangers
- Dryers
- Furnaces
- Industrial machinery
- Thermal processing equipment
The wide range increases versatility and reduces the need for multiple temperature sensors.
Unique Bow Type Sensing Design
The distinguishing feature of this thermocouple is its specially designed Bow Type sensing element.
The bow-shaped sensor tip is engineered to conform to the contour of curved and cylindrical surfaces, ensuring improved contact and more reliable temperature measurement.
Benefits of Bow Type Design
- Enhanced surface contact
- Suitable for round surfaces
- Improved measurement stability
- Better thermal transfer
- Consistent temperature readings
- Reduced measurement error
The design is especially effective when measuring temperatures on pipes, tubes, cylinders, and other curved industrial equipment.
Ideal for Curved Surface Temperature Measurement
Conventional probes often struggle to achieve proper contact on curved surfaces. The Bow Type Thermocouple solves this challenge by providing a larger contact area.
Suitable Surfaces Include
- Process pipelines
- Steam lines
- Cylindrical tanks
- Rollers
- Rotating drums
- Heat exchangers
- Motor housings
- Industrial vessels
- Reactor surfaces
- Equipment casings
This flexibility makes it a valuable tool for maintenance engineers and process operators.
Fast Response Time
Temperature fluctuations can occur rapidly in industrial processes. Quick detection enables operators to maintain process control and respond to abnormal conditions before they affect production.
Fast Response Benefits
- Immediate temperature feedback
- Improved process control
- Faster troubleshooting
- Better production efficiency
- Enhanced equipment protection
The sensor quickly adapts to temperature changes, providing reliable real-time measurements.
Durable 12-Inch Long Probe
The thermocouple is equipped with a 12-inch long probe, allowing operators to safely measure temperatures on equipment that may be difficult to access.
Advantages of Extended Length
- Safer operation around hot surfaces
- Better accessibility
- Convenient handling
- Improved operator safety
- Greater measurement flexibility
The long probe design allows measurements to be taken from a comfortable distance while maintaining accurate sensor positioning.
1 Meter Cable for Flexible Connectivity
The sensor is supplied with a 1-meter extension cable, allowing easy connection to temperature measuring instruments.
Benefits
- Convenient operation
- Easy connection to indicators
- Improved mobility
- Reduced installation limitations
- Flexible measurement capability
The cable length is suitable for both portable and fixed temperature monitoring applications.
Compatible with K-Type Thermocouple Instruments
The Bow Type Surface Measuring Sensor is designed for use with standard K-Type thermocouple temperature measurement systems.
Compatible Equipment
- Digital thermometers
- Temperature indicators
- Process controllers
- Data loggers
- Temperature calibrators
- Industrial automation systems
This compatibility allows seamless integration into existing temperature monitoring setups.
Rugged Construction for Industrial Environments
Industrial environments often involve vibration, dust, heat, moisture, and mechanical handling.
The “Ji” Japsin Instrumentation Bow Type Thermocouple is built to withstand these demanding conditions.
Construction Features
- Heavy-duty sensor assembly
- Durable cable construction
- Industrial-grade materials
- Long service life
- Reliable performance
- Low maintenance requirements
The rugged design ensures dependable operation even under continuous industrial use.
Applications Across Multiple Industries
Power Plants
Measures temperatures on steam lines, turbines, boilers, and process equipment.
Chemical Industry
Monitors pipe temperatures, reactors, vessels, and processing equipment.
Oil & Gas Industry
Suitable for surface temperature monitoring on pipelines and equipment.
Steel Industry
Measures temperatures on metal surfaces and process machinery.
Cement Industry
Used for equipment monitoring and thermal process verification.
HVAC Systems
Monitors ducts, pipes, chillers, and heating systems.
Manufacturing Plants
Supports production process temperature control.
Maintenance Departments
Used for preventive and predictive maintenance inspections.
Research Laboratories
Suitable for thermal testing and temperature analysis applications.
Pharmaceutical Industry
Used in process validation and equipment monitoring applications.
Importance of Surface Temperature Monitoring
Accurate surface temperature monitoring helps organizations:
- Improve process efficiency
- Reduce energy losses
- Enhance equipment reliability
- Improve product quality
- Prevent overheating
- Reduce downtime
Temperature monitoring can help identify:
- Heat transfer problems
- Insulation failures
- Equipment wear
- Process abnormalities
- Maintenance requirements
This contributes to safer and more efficient plant operation.
Long-Term Reliability and Performance
The “Ji” Japsin Instrumentation Bow Type Thermocouple is designed for long operational life and stable measurement performance.
Reliability Features
- Proven thermocouple technology
- Stable output characteristics
- Durable sensing element
- Excellent repeatability
- Industrial-grade construction
- Consistent measurement accuracy
These features ensure dependable operation in demanding industrial environments.
Why Choose “Ji” Japsin Instrumentation Bow Type Thermocouple?
The “Ji” Japsin Instrumentation BOW Type Thermocouple Surface Measuring Sensor provides a reliable, accurate, and cost-effective solution for industrial surface temperature measurement. Its -50°C to 800°C temperature range, 12-inch long probe, 1-meter cable, and specialized Bow Type sensing design make it particularly effective for measuring temperatures on curved and cylindrical surfaces.
Whether used in power plants, chemical industries, manufacturing facilities, HVAC systems, maintenance departments, laboratories, or process industries, this sensor delivers fast response, dependable accuracy, and long service life. For professionals seeking a durable and efficient surface temperature measurement solution, the Ji Japsin Bow Type Thermocouple is an excellent choice for demanding industrial applications.
Japsin Instrumentation – Since 1974

Jiyaan Mehra –
Reliable Performance!
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Quality, reliability, and great value!
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