Description
Japsin Instrumentation Pocket Glass Thermometer, Red Spirit Filled, Range -30°C to 30°C, L.C. 0.1°C, 120 mm Length – Precision Laboratory & Industrial Temperature Measurement
The Japsin Instrumentation Pocket Glass Thermometer is a compact, precise, and highly reliable temperature measuring instrument designed for laboratory, industrial, and field measurement applications. Built with high-quality glass construction and filled with red spirit liquid, this thermometer provides accurate temperature readings within the range of –30°C to 30°C with a least count of 0.1°C, ensuring fine resolution and dependable performance for low-temperature monitoring.
Temperature measurement plays a critical role in laboratory testing, industrial processes, HVAC maintenance, chemical analysis, and environmental monitoring. Even small temperature variations can significantly influence experimental results, product quality, and equipment performance. The Japsin pocket glass thermometer is engineered to provide consistent and easy-to-read measurements in such applications.
With a 120 mm compact design, this thermometer is lightweight, portable, and convenient to carry, making it suitable for technicians, laboratory professionals, researchers, quality control inspectors, and engineers who require a simple yet highly effective temperature measurement tool.
What is a Pocket Glass Thermometer?
A pocket glass thermometer is a small, portable liquid-in-glass temperature measuring instrument designed for quick and convenient temperature readings. These thermometers operate on the principle of thermal expansion of liquids, where the liquid inside the capillary tube expands or contracts based on temperature changes.
In this thermometer, red spirit (alcohol-based liquid) is used as the temperature sensing fluid. When the temperature increases, the liquid expands and rises in the capillary tube. When the temperature decreases, the liquid contracts and moves downward. The temperature value can then be read directly from the calibrated scale printed on the thermometer.
Pocket thermometers are commonly used where portable and direct temperature measurement is required without the need for electronic instruments or power supply.
High-Quality Red Spirit Filling
The Japsin pocket thermometer uses red spirit filling, which is an alcohol-based liquid dyed red to enhance visibility. Red spirit thermometers are widely preferred in laboratories and industrial applications due to several advantages.
Advantages of Red Spirit Thermometers
1. High Visibility
The bright red liquid column provides clear and easy readability, allowing users to quickly observe temperature changes even under moderate lighting conditions.
2. Mercury-Free Design
Red spirit thermometers do not contain mercury, making them safer for handling and environmentally friendly.
3. Reliable Low-Temperature Performance
Alcohol-based liquids perform well at low temperatures, making them ideal for measuring temperatures below freezing.
4. Smooth Temperature Response
The liquid responds quickly to temperature changes, allowing users to obtain stable readings efficiently.
Wide Temperature Range for Low-Temperature Monitoring
This thermometer offers a measurement range of -30°C to 30°C, making it ideal for monitoring low-temperature environments where precision is essential.
Typical Applications for This Temperature Range
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Laboratory experiments
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Chemical and pharmaceutical testing
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Environmental monitoring
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Refrigeration systems
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HVAC maintenance
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Cold storage monitoring
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Industrial quality control
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Educational laboratory demonstrations
The wide range allows the thermometer to measure temperatures below freezing as well as moderate room temperatures, making it a versatile instrument.
High Resolution with 0.1°C Least Count
Precision is essential in temperature measurement, especially in laboratory environments. The Japsin pocket thermometer features a least count (L.C.) of 0.1°C, allowing users to detect even small temperature variations.
Benefits of Fine Resolution
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Accurate laboratory observations
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Improved experimental consistency
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Reliable quality control measurements
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Precise monitoring of temperature-sensitive processes
The clearly marked graduations on the scale make it easy for users to read the temperature with high clarity.
Compact 120 mm Portable Design
One of the key advantages of this thermometer is its compact 120 mm length, which allows it to be easily carried in pockets, instrument kits, or laboratory drawers.
Benefits of the Compact Design
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Easy portability
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Convenient storage
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Ideal for field technicians
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Suitable for quick spot measurements
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Lightweight and practical
This makes the thermometer particularly useful for maintenance technicians, laboratory staff, and engineers who frequently move between measurement locations.
Clear and Easy-to-Read Temperature Scale
The thermometer features a clearly printed Celsius scale with fine graduations that allow users to read temperature values accurately.
Scale Features
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High contrast scale markings
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Precise calibration
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Fine 0.1°C divisions
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Easy visual interpretation
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Minimal parallax error when read correctly
The red liquid column stands out clearly against the background scale, making readings simple and fast.
How to Use the Pocket Glass Thermometer
Using the thermometer is simple and straightforward.
Step 1 – Place the Thermometer
Insert or place the thermometer in the medium where temperature measurement is required.
Step 2 – Wait for Stabilization
Allow a few seconds for the liquid column to stabilize according to the surrounding temperature.
Step 3 – Read the Temperature
Observe the level of the red spirit column and read the temperature value from the printed scale.
Step 4 – Remove Carefully
After measurement, remove the thermometer carefully to prevent glass damage.
Why Choose Japsin Instrumentation Thermometers?
Japsin Instrumentation is known for manufacturing reliable industrial and laboratory instruments designed for precision measurement applications.
Key Reasons to Choose Japsin Instrumentation
Quality Manufacturing
Every instrument is manufactured with strict quality control standards.
Reliable Measurement Performance
Designed to provide consistent temperature readings across various applications.
Industry-Focused Design
Suitable for laboratories, industrial environments, HVAC technicians, and educational institutions.
Professional Instrumentation Expertise
Japsin Instrumentation products are widely used in process control, testing laboratories, and industrial measurement applications.
Japsin Instrumentation – Since 1974
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