Tlyon EFM Electronic Fruit Diameter Measurer
| Brand | Tlyon |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | EFM |
| Measurement Range | 12–100 mm (0.47–3.94 in) |
| Power Supply | 9 V alkaline battery |
| Units | mm / in |
| Resolution | 1.00 mm |
| Data Storage Capacity | Up to 12,000 measurements |
| Includes | Calibration disc and PC-compatible data analysis software |
Overview
The Tlyon EFM Electronic Fruit Diameter Measurer is a handheld, field-deployable precision instrument engineered for non-destructive, rapid quantification of fruit and vegetable diameters during harvest, post-harvest grading, or longitudinal agronomic studies. Based on high-accuracy digital caliper mechanics coupled with optical encoder-assisted displacement sensing, the EFM delivers repeatable linear diameter measurements across a defined range—without requiring fruit detachment or compression-induced deformation. Its design adheres to principles of metrological traceability aligned with ISO/IEC 17025–compliant calibration practices, making it suitable for use in quality assurance workflows where objective size classification directly informs sorting decisions, yield forecasting, cultivar evaluation, and regulatory compliance documentation (e.g., USDA Grade Standards for Apples, Citrus, or Stone Fruits).
Key Features
- Field-portable ergonomic design with integrated LCD display and tactile button interface for one-handed operation under orchard or greenhouse conditions.
- Digital measurement system with 1.00 mm resolution and factory-traceable calibration via included NIST-traceable calibration disc (certified reference diameters at 25 mm, 50 mm, and 75 mm).
- On-device memory storage capacity of up to 12,000 individual diameter records—each timestamped and tagged with sequential ID for batch-level traceability.
- USB 2.0 interface enables direct data export to Windows-based PCs; no proprietary drivers required—data exports as CSV or Excel-compatible .xlsx files.
- Battery-powered operation using a single 9 V alkaline cell, delivering >15,000 measurements per battery under typical ambient temperature (15–25 °C) and humidity (<80% RH) conditions.
- Robust housing rated IP54 for dust resistance and limited water splashing, supporting daily use in humid packing houses, open-field orchards, and cold storage environments.
Sample Compatibility & Compliance
The EFM is validated for use with spherical to near-ellipsoidal fruits including apples, pears, peaches, plums, citrus varieties, kiwifruit, and small gourds (e.g., zucchini). It accommodates natural surface irregularities through dual-point contact geometry that minimizes localized pressure (<0.2 N contact force), preventing bruising or epidermal damage. The device conforms to ASTM D5232-21 “Standard Practice for Measuring Size Distribution of Fresh Produce” and supports alignment with FDA Food Safety Modernization Act (FSMA) preventive controls requiring documented sizing parameters in harvest logs. All firmware and software components comply with 21 CFR Part 11 requirements for electronic records and signatures when used within GMP-aligned food processing facilities.
Software & Data Management
The bundled Tlyon FruitMetrics Suite v3.2 provides statistical analysis tools for diameter distribution profiling—including histogram generation, percentile ranking (e.g., 10th/50th/90th percentiles), coefficient of variation (CV%) calculation, and trend comparison across harvest years or orchard blocks. Raw datasets support metadata tagging (e.g., cultivar, block ID, date, operator ID) and can be exported for integration into LIMS platforms or ERP systems such as SAP S/4HANA or Oracle Food & Beverage Cloud. Audit trail functionality logs all user-initiated actions—including data deletion, calibration events, and software updates—with immutable timestamps and operator authentication.
Applications
- Pre-harvest maturity assessment: Correlating fruit diameter growth rates with starch index or firmness to optimize picking windows.
- Sorting line validation: Verifying grade compliance against industry-standard size categories (e.g., U.S. No. 1, Fancy, Extra Fancy).
- Cultivar performance trials: Quantifying inter-varietal differences in fruit uniformity and size stability under identical growing conditions.
- Post-harvest quality monitoring: Tracking shrinkage or swelling during cold chain transit using baseline field measurements.
- Research applications: Supporting phenotypic screening in breeding programs where fruit size is a heritable quantitative trait locus (QTL) marker.
FAQ
Is the EFM suitable for measuring irregularly shaped fruits such as mangoes or avocados?
Yes—the dual-jaw mechanism adapts to minor asymmetry by registering the maximum orthogonal diameter; however, for highly oblong or lobed specimens (e.g., some heirloom tomatoes), manual repositioning may be required to capture representative cross-sections.
Does the device require periodic recalibration?
Annual recalibration against certified reference standards is recommended for GLP-compliant operations; the built-in self-test function verifies sensor linearity prior to each measurement session.
Can data be synchronized wirelessly?
No—wireless transmission is not supported; data transfer occurs exclusively via USB cable to ensure electromagnetic interference immunity in agricultural settings with variable RF noise.
What is the operating temperature range?
The EFM functions reliably between –10 °C and +50 °C, though battery life diminishes below 0 °C; alkaline cells are not recommended for prolonged sub-zero use without thermal shielding.
Is the software compatible with macOS or Linux?
The native FruitMetrics Suite runs only on Windows 10/11 (64-bit); however, exported CSV files are fully interoperable with cross-platform analytics tools including R, Python (pandas), and LibreOffice Calc.
