The ESAW Four Probe Apparatus (EEC-11385) is a precision-designed system for measuring the resistivity and energy band gap of semiconductors. Widely used in physics, electronics, and engineering labs, this apparatus is ideal for both teaching and advanced research applications.
The unit is supplied with:
✅ Technical Specifications:
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Constant Current Generator
• Open Circuit Voltage: 18V
• Current Range: 0–20mA
• Resolution: 10µA
• Accuracy: ±0.25% of reading ± digit
• Load Regulation: 0.03% (no load to full load)
• Line Regulation: 0.05% (±10% mains variation)
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Multi-Range Digital Voltmeter
• Range: X1 (0–200 mV), X10 (0–2V)
• Resolution: 100µV at X1 range
• Accuracy: ±0.1% of reading ±1 digit
• Input Impedance: 1 MΩ
• Display: 3½ digit, 7-segment LED (12.5 mm height) with auto polarity & decimal indication
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Power Supply: 220 V ±10%, 50 Hz
Country of Origin: Made in India
Use Case Scenarios:
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📘 Students: Hands-on training in semiconductor physics and resistivity studies.
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🏫 Schools & Colleges: Core experiment in electronics & physics labs.
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🔬 Science & Engineering Labs: Research-grade tool for semiconductor material analysis.
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🏥 Medical & Engineering Colleges: Ideal for curriculum-linked physics experiments.
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🏭 Industrial Labs & Research Centres: Useful for R&D in semiconductor materials and device characterization.
Affordable, durable, and engineered for accuracy, the ESAW Four Probe Apparatus is a trusted choice for educational institutions, bulk buyers, and global distributors across India, Africa, Europe, Asia, and the USA.
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