Overview
The AELAB Fruit Hardness Tester FHT-05 is a compact digital penetrometer designed for fruit and vegetable hardness testing. By measuring the force required to penetrate fruit pulp, the instrument assists in determining ripeness, picking time, and monitoring softening during storage. The FHT Series provides Max, Hold, and unit conversion functions to support field use and laboratory quality-control workflows.
With USB/RS-232 data output and optional Bluetooth connectivity, the FHT-05 enables seamless transfer of firmness measurements to PC software for analysis and reporting.
⚙️ Design & Construction
The AELAB FHT-05 features a durable handheld structure with a 3.5 mm penetration tip engineered for consistent hardness measurement across soft, small, firm, and hard fruits. The digital display ensures clear reading of force values, while the ergonomic body supports stable pressing motion. The 10 mm pressing depth is optimized for standardized agricultural firmness testing.
🔬 Working Principle / Testing Method
The FHT-05 quantifies fruit hardness by measuring the penetration force when the 3.5 mm tip plunges into fruit pulp. The internal load cell detects resistance and converts it into kgf/cm², lbf/cm², N/cm², or Pa. The data output allows continuous monitoring of ripening, quality grading, and softening curves. The device maintains measurement stability across 0~45 °C with humidity below 90%RH.
💡 Key Advantages
- Precise digital measurement of fruit firmness and ripeness
- ±(1%H+0.1) kgf/cm² accuracy for reliable agricultural QC testing
- 3.5 mm penetration tip suitable for small, soft, and firm fruit categories
- Multi-unit conversion supports international grading standards
- USB/RS-232 interface enhances data logging and traceability
- Optional Bluetooth adapter enables wireless field-to-PC data transfer
- Lightweight 230 g design supports handheld inspection and on-site sampling
🔗 Connectivity & Integration
The FHT-05 supports RS-232C data cable connection for PC software integration. Data can also be transmitted via optional Bluetooth adapter for wireless acquisition. The unit is compatible with AELAB analysis software for storage, trending, and reporting of firmness measurements.
🧠 Model Insight
The FHT Series includes classifications for different fruit groups based on pulp firmness. Below is the catalog-verified classification table:
| Fruit |
Example |
| Small Fruit |
Strawberry, Cherry, Grape, Berry |
| Soft Fruit |
Peach, Banana, Apricot, Plum, Melon, Citrus, Persimmon |
| Firm Fruit |
Pear, Nectarine, Kiwi |
| Hard Fruit |
Avocado |
🧪 Testing Applications
The AELAB FHT-05 is used in orchards, packing houses, research centers, and food-quality laboratories. Typical applications include monitoring fruit maturity, assessing readiness for harvesting, controlling postharvest softening, and evaluating varietal firmness characteristics for breeding programs.
Compliance & Quality Assurance
The instrument is manufactured under AELAB quality standards with traceable calibration procedures. It supports Good Laboratory Practice (GLP) documentation through digital data export and standardized measurement protocols.