

Key Highlights
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Fast Stabilization: Achieves accurate results in just 3 seconds.
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One-Touch Calibration (HR-AZ models): Simplifies calibration with built-in automatic adjustment weight.
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Compact Design: Saves bench space without sacrificing performance.
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Rotary Sliding Doors: Easy access to the weighing chamber with minimal footprint.
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Removable Breeze Break: Anti-static coated shield protects sensitive measurements.
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Flexible Modes: Supports weighing, percentage, parts counting, and density determination.
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GLP/GMP/GCP/ISO Compliant: Ensures reliable, documented traceability.
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Durable Construction: Designed for long-term lab use with a five-year limited warranty.
The A&D HR-A and HR-AZ Series Analytical Balances combine speed, precision, and compact design for laboratories and research environments. With a 3-second stabilization time, these balances deliver quick and accurate results, boosting workflow efficiency.
HR-AZ models feature one-touch internal calibration, ensuring reliability and repeatability with minimal operator effort, while HR-A models use external calibration for flexibility. Both series include a removable breeze break with an anti-static coating and rotary sliding doors, optimizing space and protecting samples from environmental interference.
Designed for compliance-driven industries, the HR-A/HR-AZ balances are GLP/GMP/GCP/ISO compliant and include advanced weighing modes such as percentage, counting, and density determination. Lightweight yet durable, with an estimated weight of just 8.6 lb (3.9 kg), these balances are easy to set up and relocate when necessary.
Specifications
Feature | Specification |
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Weighing Units | Carat, pennyweight, troy ounce, decimal ounce (see manual for full listing) |
Operating Modes | Weighing, percent weighing, parts counting, density |
Power | 120/240 VAC adapter |
Stabilization Time | 3 seconds |
Calibration Weights | HR-100A/100AZ: 200 g; HR-150A/150AZ: 150 g; HR-250A/250AZ: 100 g |
Operating Temperature | 41 °F to 104 °F (5 °C to 40 °C) |
Humidity | ≤ 85% RH, non-condensing |
Net Weight | 8.6 lb (3.9 kg) |
Warranty | Five-year limited |
Return Policy | A&D Weighing standard policy (restock fee may apply) |
Models and Dimensions
Model | Capacity | Readability | Repeatability | Linearity | Pan Size | Dimensions (W × D × H) | Part # |
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HR-100A | 102 g | 0.0001 g | 0.1 mg | ±0.2 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150777 |
HR-100AZ | 102 g | 0.0001 g | 0.1 mg | ±0.2 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150779 |
HR-150A | 152 g | 0.0001 g | 0.1 mg | ±0.2 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150780 |
HR-150AZ | 152 g | 0.0001 g | 0.1 mg | ±0.2 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150781 |
HR-250A | 252 g | 0.0001 g | <200 mg: 0.1 mg / >200 mg: 0.2 mg | ±0.3 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150782 |
HR-250AZ | 252 g | 0.0001 g | <200 mg: 0.1 mg / >200 mg: 0.2 mg | ±0.3 mg | Ø 3.6 in (90 mm) | 7.8 × 11.6 × 12.3 in (198 × 294 × 313 mm) | 150783 |
Optimize your laboratory precision with the A&D HR-A/HR-AZ Series Analytical Balance.
Contact us today for pricing, availability, and application support.
Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
Customer Support: Contact at (844)-735-5386 or info@selletonscales.com for queries or concerns about shipping.