Description
Industrial & Marine Thermometer, Temperature Range 0 to 100°C, 40 mm Stem After Thread, 3/8″ BSP (M) Connection
Compact Industrial & Marine Thermometer for Reliable Temperature Monitoring
The “Ji” Japsin Instrumentation Industrial & Marine Thermometer is a high-quality mechanical temperature measuring instrument designed to provide accurate, reliable, and maintenance-free temperature indication in industrial and marine environments. With a temperature range of 0 to 100°C, 40 mm stem after thread, and a 3/8″ BSP (Male) process connection, this thermometer is ideal for monitoring moderate-temperature processes where durability and precision are essential.
Manufactured using premium-quality materials and precision engineering, the thermometer is built for long-term service in demanding operating conditions. It is widely used in marine engine rooms, boilers, hot water systems, HVAC plants, process pipelines, storage tanks, heat exchangers, compressors, water treatment facilities, and industrial machinery.
Unlike electronic thermometers, this instrument operates on a mechanical liquid expansion principle, eliminating the need for electricity, batteries, or external power. This makes it a dependable solution for continuous temperature monitoring, even in remote installations or areas where power availability is limited.
Accurate Temperature Measurement for Industrial Processes
Maintaining the correct operating temperature is crucial for ensuring equipment efficiency, product quality, and process safety. The “Ji” Japsin Instrumentation Industrial & Marine Thermometer offers reliable measurement within a 0 to 100°C range, making it suitable for a wide variety of industrial and commercial applications.
Temperature Range
- Minimum Temperature: 0°C
- Maximum Temperature: 100°C
This operating range is ideal for:
- Hot water pipelines
- Cooling water systems
- Steam condensate lines
- Heat exchangers
- Water storage tanks
- HVAC equipment
- Marine cooling systems
- Utility pipelines
- Industrial machinery
The clear temperature scale allows operators to monitor system performance with confidence.
Easy-to-Read Vertical Temperature Scale
The thermometer features a clearly marked vertical scale with bold graduations that enable quick and accurate temperature reading.
Benefits
- High visibility
- Fast reading during inspections
- Reduced operator error
- Easy monitoring from a distance
- Suitable for industrial environments
The large scale simplifies routine monitoring and helps operators identify temperature variations quickly.
Rugged Industrial Construction
Designed for continuous industrial service, the “Ji” Japsin Instrumentation Industrial & Marine Thermometer features a durable body capable of withstanding demanding working environments.
Construction Advantages
- Heavy-duty industrial design
- Excellent mechanical strength
- Corrosion-resistant components
- Long service life
- Reliable performance under continuous operation
Its robust construction makes it suitable for installations exposed to vibration, moisture, and varying ambient conditions.
40 mm Stem After Thread
The thermometer is equipped with a 40 mm sensing stem after the threaded connection, making it ideal for compact installations and shallow immersion applications.
Advantages
- Fast temperature response
- Compact installation
- Accurate sensing
- Suitable for smaller pipelines and equipment
- Easy integration into thermowells
The stem length ensures efficient heat transfer from the process medium to the sensing element.
Standard 3/8″ BSP (Male) Connection
The instrument comes with a 3/8″ BSP (Male) threaded connection, providing compatibility with many industrial and marine systems.
Benefits
- Easy installation
- Secure leak-resistant fitting
- Standard industrial thread
- Convenient replacement of existing thermometers
- Suitable for OEM equipment
The standardized connection ensures quick and reliable installation into process lines or thermowells.
Mechanical Liquid Expansion Technology
The thermometer operates using a liquid expansion measuring system that provides continuous temperature indication without electrical power.
Benefits
- No power supply required
- No batteries
- No electronic components
- Reliable mechanical operation
- Maintenance-free performance
- Continuous temperature monitoring
Mechanical thermometers remain a preferred choice for industries requiring dependable operation under harsh conditions.
Designed for Marine Applications
Marine operating conditions demand instruments that can withstand vibration, humidity, and continuous service. The “Ji” Japsin Instrumentation Industrial & Marine Thermometer is widely used for monitoring temperatures in:
- Marine engines
- Cooling water circuits
- Boiler systems
- Auxiliary machinery
- Heat exchangers
- Freshwater systems
- Engine room equipment
Its robust construction ensures dependable performance aboard cargo ships, fishing vessels, offshore platforms, passenger ships, and other marine installations.
Industrial Applications
This thermometer is suitable for a broad range of industries, including:
1. Boiler & Steam Systems
Monitors hot water, condensate, and heating system temperatures.
2. Water Treatment Plants
Measures process water temperature in filtration and treatment systems.
3. HVAC Industry
Suitable for heating, ventilation, and hot water circulation systems.
4. Chemical Processing
Monitors temperatures in compatible process equipment and storage tanks.
5. Food & Beverage Industry
Ideal for hot water systems, cleaning processes, and production utilities.
6. Pharmaceutical Industry
Used in utility systems and controlled process environments.
7. Textile Industry
Suitable for washing, dyeing, and heating applications.
8. Marine Engineering
Installed in cooling systems, engines, and onboard utility equipment.
9. OEM Machinery
Integrated into industrial machines, boilers, and heating equipment.
Easy Installation and Low Maintenance
The “Ji” Japsin Instrumentation Industrial & Marine Thermometer is designed for quick installation and minimal maintenance.
Simply install the thermometer using the 3/8″ BSP (Male) threaded connection into a compatible thermowell or process fitting. Once installed, the instrument provides continuous temperature indication without requiring electrical wiring or periodic battery replacement.
Routine maintenance typically includes:
- Visual inspection
- Cleaning the viewing window
- Checking threaded connections
- Calibration verification where required
The simple mechanical construction minimizes downtime and reduces maintenance costs.
Long Service Life and Dependable Performance
Every “Ji” Japsin Instrumentation thermometer is manufactured under stringent quality control standards to ensure reliable operation over many years.
Key performance benefits include:
- Stable temperature readings
- Excellent repeatability
- High durability
- Corrosion resistance
- Reliable long-term performance
- Minimal maintenance requirements
Its dependable operation makes it an excellent choice for industrial facilities seeking cost-effective temperature monitoring solutions.
Why Choose “Ji” Japsin Instrumentation Industrial & Marine Thermometer?
“Ji” Japsin Instrumentation is known for manufacturing robust industrial instrumentation products designed to meet the needs of modern industries. This Industrial & Marine Thermometer combines precision, durability, and ease of use in a compact design.
Whether you need reliable temperature monitoring for marine engines, boilers, hot water systems, HVAC equipment, industrial pipelines, water treatment plants, storage tanks, or OEM machinery, the “Ji” Japsin Instrumentation Industrial & Marine Thermometer provides dependable performance and accurate temperature indication. Its compact design, robust construction, and maintenance-free operation make it a trusted solution for professionals across marine, industrial, commercial, and process industries seeking long-lasting and efficient temperature measurement equipment.
Japsin Instrumentation – Since 1974


Aarav Patel –
Great value!
Adit Chatterjee –
Good Product
Jiya Patel –
Nice Product