Analog Haugh Unit Tester

Analog Haugh Unit Tester – Professional Egg Quality Measurement

Brand Chemical Supplies offers the Analog Haugh Unit Tester, an industry-standard precision instrument for poultry researchers, egg producers, and quality control laboratories. This mechanical micrometer is specifically designed to measure the height of the thick albumen (egg white) to calculate the Haugh Unit—the international benchmark for egg freshness and internal quality.

Technical Specifications

• Type: Mechanical/Analog Micrometer.

• Measuring Range: 0.01 mm to 12.5 mm.

• Accuracy: \pm 0.01 mm graduations.

• Construction: Stainless steel measuring probe with a stable, three-legged tripod base.

• Display: Easy-to-read analog dial gauge with adjustable bezel for zero-resetting.

• Action: Manual plunge-needle mechanism with a smooth return spring.

Key Features & Benefits

• Golden Standard for Freshness: Provides the raw data needed to calculate the Haugh Unit using the formula HU = 100 \log(h – 1.7w^{0.37} + 7.6), where h is albumen height and w is egg weight.

• Precision Engineering: The tripod base is designed to sit perfectly flat on a glass surface, ensuring the needle descends at a perfect 90° angle for consistent, repeatable readings.

• Battery-Free Reliability: As a purely mechanical device, it requires no power source, making it ideal for field use in rural hatcheries or mobile labs across South Africa.

• Durable & Sanitary: Manufactured from high-grade materials that resist corrosion from egg proteins and are easy to sanitize between testing sessions.

• Immediate Results: Unlike complex digital systems, the analog dial provides an instant, clear reading as soon as the probe touches the albumen.

Primary Applications

• Poultry Research: Tracking the impact of different feed formulas or hen ages on internal egg quality.

• Commercial Egg Grading: Random batch testing to ensure premium retail standards are maintained throughout the supply chain.

• Hatchery Management: Assessing the quality of hatching eggs to predict chick vigor and embryonic success.

• Regulatory Compliance: Providing documented proof of quality for export markets or large-scale food service contracts.

Usage Guidelines

1. Preparation: Weigh the egg first and record the mass ($w$).

2. Breaking: Carefully break the egg onto a flat, level glass surface (a “breaking table”).

3. Measurement: Place the Haugh Tester over the egg so the needle is positioned over the thickest part of the albumen (avoid the chalaza).

4. Reading: Lower the probe until it just touches the surface of the albumen. Record the height ($h$) shown on the dial.

5. Calculation: Use the standard Haugh chart or formula to determine the grade (e.g., AA, A, or B).

Contact our poultry technical team today to secure your Analog Haugh Unit Tester and ensure your egg production meets the highest global quality standards.