| Product Showcase |
Content |
| Product Name |
29 CM RED-LIQUID GLASS THERMOMETER |
| Product Image |
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| Product Overview |
The 29 cm Red-Liquid Glass Thermometer is a simple and reliable temperature measuring instrument designed for livestock laboratories, breeding facilities, farm production areas and general liquid temperature monitoring. Its long glass stem provides convenient access to water baths, containers, laboratory vessels and other temperature-controlled applications.
The clearly visible red liquid column rises and falls automatically with temperature changes, eliminating the need for shaking before use. The thermometer also incorporates a safety expansion section designed to provide additional protection if the temperature temporarily exceeds the normal scale range. |
| Product Gallery |
Long-stem glass thermometer, red liquid temperature column, clear Celsius scale, enlarged sensing bulb and safety expansion chamber for laboratory and farm temperature monitoring. |
| Key Features |
- 29 cm Long-Stem Design: Convenient for measuring liquids in water baths, beakers, containers and livestock laboratory equipment.
- Highly Visible Red Liquid Column: Provides clear contrast against the scale for convenient temperature reading.
- Automatic Rise and Fall: The liquid column responds directly to temperature changes without requiring shaking or manual resetting.
- Clear Graduated Scale: Fine scale markings allow operators to observe temperature changes easily.
- Sensitive Temperature Bulb: The enlarged sensing bulb provides effective thermal contact with the measured medium.
- Safety Expansion Section: Designed to reduce the risk of thermometer damage if temperature temporarily exceeds the normal measuring scale.
- No Battery Required: Mechanical liquid-in-glass operation requires no electrical power or charging.
- Simple Maintenance: Smooth glass construction is easy to wipe clean after routine use.
- Multiple Farm Applications: Suitable for breeding laboratories, water baths, liquid preparation and general agricultural temperature monitoring.
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| Working Principle |
The thermometer operates according to the thermal expansion principle of the liquid sealed inside the glass capillary tube. When the sensing bulb is exposed to a higher temperature, the internal liquid expands and rises through the narrow capillary. When the temperature decreases, the liquid contracts and the column falls.
The position of the red liquid column relative to the graduated scale indicates the measured temperature. Because the column responds naturally to temperature changes, no shaking or reset procedure is normally required before repeated measurements. |
| Technical Specifications |
| Product Type |
Liquid-in-Glass Thermometer |
| Overall Length |
Approx. 29 cm |
| Indicating Column |
Red Liquid |
| Body Material |
Glass |
| Temperature Indication |
Graduated Celsius Scale |
| Reset Method |
Automatic Rise and Fall, No Shaking Required |
| Temperature Sensor |
Liquid-Filled Sensing Bulb |
| Safety Design |
Upper Expansion Chamber |
| Power Requirement |
None |
| Typical Application |
Water Bath, Laboratory Liquid and Farm Temperature Measurement |
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| Applications |
- Livestock breeding laboratories
- Artificial insemination laboratory temperature monitoring
- Constant-temperature water baths
- Semen preparation and laboratory procedures
- Water and liquid temperature measurement
- Veterinary laboratory applications
- Farm production and testing areas
- Agricultural laboratory experiments
- General temperature monitoring of non-corrosive liquids
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| Installation & Maintenance |
- Inspect the glass stem and sensing bulb for cracks or damage before each use.
- Place the sensing bulb sufficiently into the measured liquid without forcing the thermometer against the bottom or side of the container.
- Allow sufficient time for the liquid column to stabilize before recording the temperature.
- Read the scale at approximately eye level to reduce reading errors.
- Clean the sensing section with a soft cloth after use.
- Avoid sudden impact, bending force or rapid extreme temperature changes that may damage the glass.
- Do not use the thermometer beyond the specified temperature scale supplied with the product.
- Store the thermometer in a protective case or secure rack when not in use.
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| Product FAQ |
Q: What is this 29 cm glass thermometer mainly used for?
A: It is suitable for measuring the temperature of water baths, laboratory liquids and other farm or breeding laboratory applications.
Q: Does the thermometer need to be shaken before use?
A: No. The red liquid column rises and falls automatically as the measured temperature changes.
Q: Does it require batteries?
A: No. It works through the natural thermal expansion and contraction of the liquid inside the glass capillary.
Q: Why is the liquid column red?
A: The colored liquid provides strong visual contrast against the thermometer scale, making temperature readings easier to observe.
Q: What is the function of the safety expansion chamber?
A: It provides additional expansion space for the internal liquid if temperature temporarily exceeds the normal calibrated scale, helping reduce the risk of glass damage.
Q: Can it be used in a constant-temperature water bath?
A: Yes. Its 29 cm long-stem design is suitable for monitoring water bath and laboratory liquid temperatures.
Q: How should the thermometer be stored?
A: Store it in a protective case or secure thermometer rack in a dry area and protect the glass body from impact.
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