Hygrometer, Wet & Dry Bulb

Product Code : SCL-PLE-11600

The Wet and Dry Bulb Hygrometer is a classical psychrometric instrument used to determine relative atmospheric humidity. By measuring the temperature depression caused by evaporation on a moistened wick, it teaches students the fundamental principles of thermodynamics and meteorology. Designed for secondary and vocational education, it provides a foundational understanding of weather patterns and evaporative cooling within STEM-based curricula.

Technical Specifications

Educational Benefits & Features

Feature: Dual-thermometer differential design.

Benefit: Allows students to visually observe the cooling effect of evaporation in real-time, solving the abstract difficulty of teaching latent heat and vapor pressure.

Feature: Integrated psychrometric conversion chart.

Benefit: Provides an immediate reference for calculating relative humidity without external software, reinforcing mathematical interpolation and data-reading skills.

Feature: Refillable external water cistern.

Benefit: Ensures the "wet bulb" remains consistently saturated for long-term monitoring, facilitating multi-day weather observation projects.

Feature: High-contrast, acid-etched scales.

Benefit: Prevents the degradation of measurement markings from UV exposure or humidity, ensuring the instrument remains accurate and readable over years of institutional use.

Feature: Non-electronic, purely physical mechanism.

Benefit: Functions independently of power sources, making it an ideal tool for field studies and ensuring it is always ready for immediate classroom demonstrations.

Curriculum Alignment

This apparatus is precision-engineered to support the benchmarks of Next Generation Science Standards (NGSS) and Technical and Vocational Education and Training (TVET). It specifically facilitates mastery in "Earth’s Systems," allowing students to empirically collect data related to the water cycle, atmospheric dynamics, and local weather forecasting. It is a staple for STEM programs focusing on environmental engineering and HVAC (Heating, Ventilation, and Air Conditioning) foundational theory.

Why Choose Educational Instrument?

Procuring meteorological hardware directly from an OEM facility ensures the highest level of calibration accuracy and material reliability for institutional procurement.

Direct Manufacturer (OEM) Expertise: We maintain proprietary Research and Development (R&D) and glass-annealing facilities, ensuring every thermometer is aged and calibrated to prevent scale drift, unlike generic white-label alternatives.

International Quality Compliance: Our manufacturing processes are strictly audited to ISO 9001 and CE standards, ensuring that educational institutions receive non-toxic, durable, and industry-compliant hardware.

Factory-Direct Pricing: By eliminating the intermediary supply chain, we provide high-authority scientific instruments at a cost-efficient price point, maximizing the impact of departmental budgets.

Bulk Institutional Supply Chain Reliability: We specialize in high-volume fulfillment for government tenders and regional school district upgrades, providing consistent hardware specifications and reliable lead times for large-scale requirements.