


Product Introduction
1. Mercury Thermometer
A Mercury Thermometer Is A Thermometer That Uses Mercury As The Measuring Medium. It Consists Of A Slender Glass Tube With A Closed Bottom. The Tube Is Filled With Mercury And Has A Graduated Scale For Measuring Temperature.
In Using A Mercury Thermometer, The Bottom Of The Tube Is Inserted Into The Object To Be Measured, While The Upper Part Is Exposed To The Air. Since Mercury Expands And Contracts Linearly With Temperature Changes, Mercury Expands And Rises When The Temperature Rises, And Contracts And Falls When The Temperature Falls. This Temperature Can Be Determined By Reading The Height Of The Mercury.
The Advantages Of Mercury Thermometers Include High Accuracy, Good Stability, Fast Response, And The Ability To Measure A Higher Temperature Range. However, Since Mercury Is A Toxic Substance, Using A Mercury Thermometer Requires Attention To Safety Issues.
2. Red Liquid Thermometer
A Red Liquid Thermometer Is A Thermometer That Uses A Dyed Organic Liquid As The Measuring Medium. It Is Similar To A Mercury Thermometer And Consists Of A Long, Thin Glass Tube With A Closed Bottom. The Tube Is Filled With A Dyed Red Organic Liquid And Has A Graduated Scale For Measuring Temperature.
With A Red Liquid Thermometer, The Bottom Of The Tube Is Inserted Into The Object To Be Measured, While The Upper Part Is Exposed To Air. Unlike Mercury Thermometers, Red Liquids Exhibit Different Color Changes As The Temperature Changes. This Color Change Is Linear With Temperature, And Based On The Color Of The Liquid, The Temperature Can Be Determined.
The Advantages Of Red Liquid Thermometers Include Clearer Readings, Fast Response, And Ability To Measure Lower Temperature Ranges. Because It Does Not Use Toxic Substances Such As Mercury, It Is More Popular In Some Environmentally Sensitive Places Or Applications That Require A High Degree Of Safety.
Red Liquid Thermometer Structure
Red Liquid Thermometers Are Another Common Type Of Thermometer That Are Similar In Construction To Mercury Thermometers But Use A Different Working Fluid, Usually An Organic Liquid.

Red Liquid Thermometers Also Use Glass Tubes As Containers, And The Shape And Size Can Vary According To Specific Design Needs.
Working Liquid:
The Tube Of The Red Liquid Thermometer Is Filled With A Certain Amount Of Specific Organic Liquid As The Working Liquid. Common Working Liquids For Red Liquid Thermometers Include Alcohol Or Dimethyl Sulfate. The Working Fluid Has Expansive Properties Similar To Mercury And Can Contract Or Expand With Changes In Temperature.
Dial:
Red Liquid Thermometers Also Have A Dial On The Outside To Show The Temperature Reading. Dials Usually Have Both Degrees Celsius And Fahrenheit Scales.
Flared Diffuser:
Red Liquid Thermometers Also Typically Have A Flared Diffuser At One End To Control The Rate Of Temperature Transfer And To Equalize Pressure.
Sealing:
Similar To Mercury Thermometers, Red Liquid Thermometers Also Need To Be Sealed To Prevent Leakage Of The Working Fluid And The Influence Of The External Environment.
Thermometer Advantages
Mercury Thermometers Have High-Temperature Measurement Accuracy, are Usually Able To Measure To A Few Decimal Places Of Celsius Or Fahrenheit Temperature Units, And Are Suitable For Occasions That Require High Precision Temperature Measurement.
2. Rapid Response:
Mercury Thermometers Use Mercury As The Working Fluid, And Mercury Has High Thermal Conductivity, So Mercury Thermometers Can Quickly Respond To Temperature Changes And Display The Temperature Accurately In Real Time.
3. Durability:
Mercury Thermometers Use Glass Tubes As Containers, Which Have Good Durability And Corrosion Resistance And Can Be Used For A Long Time Without Being Easily Damaged.


Mercury Thermometers Can Be Used Over A Wide Range Of Temperatures, Typically Measuring Temperatures From As Low As -38 Degrees Celsius (-36 Degrees Fahrenheit) To As High As 356 Degrees Celsius (672 Degrees Fahrenheit).
5. Reliability:
Because Mercury Thermometers Use Mercury, It Has Relatively Stable Physical Properties And Can Provide Reliable Temperature Measurements.
It Has High-Temperature Measurement Accuracy And Can Usually Measure To A Few Decimal Places Of The Temperature Unit.
It Is Suitable For Occasions With High Requirements For Accurate Temperature Measurement.


Quickly Sense Temperature Changes
2. Strong Thermal Conductivity
Has Good Thermal Conductivity To Ensure Accurate Conduction And Measurement Of Temperature
3. High-Temperature Performance
It Has High-Temperature Resistance Performance To Meet The Measurement Requirements In High-Temperature Environments.
4. Corrosion Resistance
It Has Corrosion Resistance And Is Made Of Corrosion-Resistant Materials.
Product Name | Thermometer |
Keywords | Mercury Thermometer |
Power Source | Hydraulic |
Product Material | Glass |
Measurement Range(Celsius) | 0-50/-10-110/0-100/0-200/0-250... |
Length | 120mm Or Customized |
Width | 12mn Or Customized |
Function | Measuring Temperature |
Color | Clear White And Yellow |
Accuracy | 0.1Celsius |
Display | Directly Read |
Service | OEM ODM |
Color Of Liquid | Red / Silver |
Feature | Durable |
Finish | Electroplating Or Powder Coating |










1. Are You A Factory Or A Supplier?
We Are A Professional Factory
2. What Can You Buy From Us?
Medical Disposable Goods, Laboratory Glassware, Laboratory Plasticware, Laboratory Metal Goods
3. How Can We Guarantee Quality?
Always A Pre-Production Sample Before Mass Production;
Always Final Inspection Before Shipment.
4. Do You Charge For The Samples?
According To Our Company Policy, We Just Charge The Samples Based On EXW Price. And We Will Return The Sample Fee During The Next Order.
5. Can You Produce According To The Customer's Design?
Yes, We Are A Professional Manufacturer; OEM And ODM Are Both Welcome.
1) Silk Print Logo On The Product;
2) Customized Product Housing;
3) Customized Color Box;
4) Any Idea On The Product We Can Help You To Design And Put Into Production?