Description
Zeal Minimum and Maximum Wall Thermometer, Temperature Range -40°C to +50°C
Reliable Minimum & Maximum Wall Thermometer for Accurate Indoor and Outdoor Temperature Monitoring
The Zeal Minimum and Maximum Wall Thermometer is a precision-engineered environmental temperature measuring instrument designed to record both the lowest (minimum) and highest (maximum) temperatures reached over a period of time. With a wide measuring range of -40°C to +50°C and corresponding Fahrenheit scales, this thermometer is an ideal solution for applications requiring continuous monitoring of ambient temperature fluctuations.
Designed for wall mounting, the Zeal Minimum & Maximum Thermometer is widely used in meteorological stations, agricultural farms, greenhouses, laboratories, hospitals, pharmaceutical facilities, schools, cold storage rooms, warehouses, weather observatories, research institutes, industrial plants, and residential buildings.
Unlike digital temperature monitoring systems, this thermometer operates using a fully mechanical liquid-in-glass principle, requiring no electricity, batteries, or external power supply. It offers dependable performance, simple operation, and long service life, making it one of the most trusted instruments for environmental temperature monitoring.
Monitor Daily Temperature Extremes with Confidence
Understanding the highest and lowest temperatures over a given period is essential for numerous industries and environmental monitoring applications. The Zeal Minimum & Maximum Wall Thermometer accurately records temperature variations, helping users analyze climatic conditions, maintain controlled environments, and ensure product safety.
The thermometer simultaneously displays:
- Current temperature
- Maximum temperature reached
- Minimum temperature reached
This enables users to determine daily temperature fluctuations without requiring continuous observation.
Wide Temperature Measuring Range
The thermometer is designed to measure temperatures from -40°C to +50°C, making it suitable for both cold and warm environments.
Temperature Range
- Minimum Temperature: -40°C
- Maximum Temperature: +50°C
The wide measuring range allows reliable monitoring in various climatic conditions, including freezing environments and moderate heat.
Suitable applications include:
- Cold storage facilities
- Refrigerated warehouses
- Greenhouses
- Agricultural fields
- Weather stations
- Laboratories
- Residential buildings
- Industrial plants
- Educational institutions
- Pharmaceutical storage areas
Measures Both Minimum and Maximum Temperature
One of the major advantages of this thermometer is its ability to record temperature extremes.
Minimum Temperature Recording
The left-side indicator records the lowest temperature reached during the observation period.
Maximum Temperature Recording
The right-side indicator records the highest temperature reached during the observation period.
These readings remain stored until manually reset, allowing users to monitor temperature changes over extended periods.
Dual Celsius and Fahrenheit Scale
The Zeal Wall Thermometer features clearly marked Celsius (°C) and Fahrenheit (°F) scales.
Benefits
- Easy reading in both units
- Suitable for international applications
- Eliminates conversion errors
- Convenient for laboratories and industries
- Compatible with global standards
The large printed graduations ensure quick and accurate temperature reading.
Easy Wall Mounting Design
The thermometer is designed for convenient wall installation.
Its lightweight body includes a mounting bracket, allowing secure installation on:
- Indoor walls
- Outdoor weather shelters
- Greenhouse frames
- Laboratory walls
- Cold storage rooms
- Factory walls
- Agricultural buildings
The vertical design minimizes installation space while providing excellent readability.
Mechanical Operation Without Electricity
The Zeal Minimum & Maximum Thermometer operates entirely through a mechanical liquid-in-glass system.
No batteries, electrical wiring, or electronic circuits are required.
Advantages
- No external power supply
- Zero electricity consumption
- No batteries to replace
- Maintenance-free operation
- Reliable long-term performance
- Continuous monitoring
This makes the thermometer particularly useful in remote locations and outdoor installations.
High Accuracy Temperature Monitoring
The thermometer is manufactured using precision-calibrated glass capillary tubes that provide reliable measurement across the complete temperature range.
Its stable mechanical design ensures:
- Consistent readings
- Good repeatability
- Reliable minimum and maximum recording
- Long calibration stability
- Accurate ambient temperature monitoring
The thermometer is suitable for professional as well as general-purpose applications.
Durable Construction for Long Service Life
Zeal thermometers are known for their robust construction and dependable performance.
The housing is designed to provide:
- Protection against dust
- Excellent mechanical durability
- Long operational life
- Stable mounting
- Easy cleaning
The protective enclosure safeguards the delicate glass tubes while maintaining excellent visibility.
Applications Across Multiple Industries
The Zeal Minimum & Maximum Wall Thermometer is widely used across numerous sectors.
1. Meteorological Stations
Records daily weather temperature extremes for environmental observation and climate analysis.
2. Agriculture
Monitors field temperatures to improve crop management and protect sensitive plants from frost or excessive heat.
3. Greenhouses
Ensures ideal growing conditions by tracking overnight lows and daytime highs.
4. Cold Storage
Monitors refrigeration temperatures to protect food, medicines, vaccines, and other temperature-sensitive products.
5. Pharmaceutical Industry
Helps maintain proper storage conditions for medicines, chemicals, and laboratory samples.
6. Hospitals
Monitors room temperatures in laboratories, blood banks, storage areas, and medical facilities.
7. Educational Institutions
Used for science education, environmental studies, and laboratory experiments.
8. Industrial Plants
Measures ambient temperatures in production facilities, warehouses, and utility rooms.
9. Research Laboratories
Suitable for environmental monitoring and controlled testing environments.
10. Residential Applications
Used for home weather observation, gardens, balconies, and outdoor temperature monitoring.
Simple Reset Mechanism
After recording the minimum and maximum temperatures, the indicators can be reset manually, allowing users to begin a new observation period.
This feature makes the thermometer suitable for:
- Daily recording
- Weekly observation
- Monthly climate monitoring
- Laboratory testing
- Agricultural record keeping
Low Maintenance Instrument
The thermometer requires very little maintenance.
Routine care includes:
- Cleaning the outer body
- Keeping the glass tubes dust-free
- Mounting securely on a stable wall
- Protecting against physical impact
- Periodic inspection for accuracy
Since there are no electronic components, maintenance costs remain extremely low.
Long-Term Reliability
The Zeal Minimum & Maximum Wall Thermometer is manufactured using high-quality materials and precision engineering to ensure dependable operation over many years.
It offers:
- Stable temperature indication
- Excellent repeatability
- Durable construction
- Reliable recording of minimum and maximum temperatures
- Long operational life
- Consistent performance in indoor and outdoor environments
Why Choose the Zeal Minimum & Maximum Wall Thermometer?
The Zeal Minimum & Maximum Wall Thermometer is an economical and dependable solution for monitoring environmental temperature variations. Its ability to simultaneously record the highest and lowest temperatures, combined with its wide operating range and maintenance-free mechanical design, makes it a preferred choice for professionals across agriculture, laboratories, healthcare, industry, and meteorology.
Whether you are monitoring weather conditions, greenhouse environments, pharmaceutical storage, laboratories, agricultural fields, cold rooms, hospitals, or industrial facilities, the Zeal Minimum and Maximum Wall Thermometer delivers reliable, accurate, and continuous temperature monitoring. Its simple mechanical operation, precision temperature recording, and rugged design make it an excellent choice for users seeking dependable environmental temperature measurement without the complexity of electronic systems.
Japsin Instrumentation – Since 1974

Krish Khanna –
Perfect fit
Parvati Menon –
Good Product
Rian Kapoor –
Nice Product