FNIRSI® LC1020E High Precision Handheld Digital Bridge LCR ESR Tester

Highlights

◉ High accuracy (up to ±0.05%) with 4.5-digit resolution for professional testing

◉ Auto identification of R/L/C components for fast, efficient measurement

◉ 5 test frequencies (100Hz–100kHz) & 3 voltage levels (0.1V–0.6V) for flexible analysis

◉ Dual-parameter display: L/C/R/Z with X/D/Q/θ/ESR for full insight

◉ Sorting mode & built-in bias voltage for stable, efficient batch testing

◉ Dual test ports (3-terminal & 5-terminal) with 4-wire Kelvin support for precision

◉ Data hold & logging functions improve test workflow

◉ Compact, rechargeable design with 3000mAh battery – ideal for lab, production, or field use

FNIRSI® LC1020E High-Precision Handheld LCR Meter is a portable and intelligent tool for testing electronic components, ideal for engineers, technicians, and hobbyists. It supports L/Q, C/D, and R/D measurements with series/parallel models, and features a 2.8-inch TFT color display.

With preset thresholds and audio-visual alerts, it enables fast pass/fail judgments, improving batch testing and quality control. Supporting up to 100 kHz test frequency, it handles high-frequency analysis of inductors, capacitors, and resistors. Its compact, battery-powered design allows precise, cable-free measurements anytime, anywhere.

Features:

• High-Precision Measurement with 4.5-Digit Resolution
• Achieves up to ±0.05% basic accuracy, offering 10× improved precision for professional-grade measurements.
• Wide Parameter Support
• Measures L/C/R/Z values with automatic mode switching, and displays X/D/Q/θ/ESR as secondary parameters for comprehensive component analysis.
• Smart Auto Component Identification
• Automatically recognizes R/L/C components and switches modes instantly — ensuring fast and efficient testing with minimal manual input.
• Multi-Frequency & Test Voltage Selection
• Supports 5 test frequencies: 100Hz, 120Hz, 1kHz, 10kHz, 100kHz
• Offers 3 RMS test levels: 0.1V, 0.3V, 0.6V — providing precise control across different testing scenarios.
• Sorting & Comparison Function
• Set nominal values and tolerances (0.1%–99.9%) for automatic pass/fail judgment, with audio-visual prompts for fast batch testing and quality control.
• Internal Bias Voltage
• Built-in bias voltage stabilizes readings and enhances measurement accuracy for sensitive components.
• Dual Test Ports: 3-Terminal & 5-Terminal (4-Wire Kelvin)
• Ensures both ease of use and maximum accuracy by minimizing lead resistance error.
• Dual-Parameter Display on 2.8" TFT Screen
• Clearly shows both main and secondary parameters in real time — easy to read anytime, anywhere.
• Open & Short Calibration
• Calibrate test fixtures and eliminate system errors for accurate and repeatable results.
• Data Hold & Logging Mode
• Short press to hold reading, long press to enter logging mode — with categorized statistics on pass/fail results for improved test efficiency.
• Compact & Rechargeable Design
• Lightweight, portable body powered by a 3.7V 3000mAh lithium battery, perfect for lab, production line, and field use.

Specifications:

General Parameters:

ModelLC1020ETest Frequency100Hz, 120Hz, 1KHz, 10KHz, 100KHzBasic Accuracy0.3%Display2.8-inch TFT LCD displayDisplay DigitsMain Parameter: 4.5 digits

Secondary Parameter: 4.5 digitsMeasurement ParametersMain Parameters: AUTO/R/C/L/Z

Secondary Parameters: X/D/Q/θ/ESRMeasurement RangeL: 0-100H

C: 0-100mF

R: 0-10MInternal Bias0.0V, 0.5VTest Level0.1V, 0.3V, 0.6VCalibration FunctionsOpen circuit calibration, Short circuit calibrationComparison FunctionUsed to calculate the relative error between the component measurement value and the nominal value, displayed as a percentage, and provides filtering results. Nominal values and tolerance can be set, with tolerance range adjustable from 0.1% to 99.9%Function RecordChecks if the measured component data meets the set nominal value and tolerance, recording the number of successful and failed measurementsTest Terminal ConfigurationThree-terminal, Five-terminalOutput Impedance100ΩCommunication InterfaceUSB-TypeC (Virtual serial port)OthersLanguage settings, Screen brightness, Sound settings, Auto power-off, Calibration settings, System information

Measurement Accuracy:

⚠ Precautions:

• The ambient temperature should be maintained at 20℃ ± 2℃, and the humidity should be ≤ 80% R.H.
• The instrument should be preheated for at least 30 minutes before testing.
• Testing should be performed at the instrument's test slots on the front panel.
• It is recommended to perform open-circuit and short-circuit calibration before testing.

Capacitance (C)

Range: 1mF-100mFAccuracy:

100Hz: 5% ± 5 digits

1KHz: 3% ± 5 digits

10KHz: /

100KHz: /Range: 1uF-1mFAccuracy:

100Hz: 1% ± 4 digits

1KHz: 0.5% ± 5 digits

10KHz: 2% ± 5 digits

100KHz: 3% ± 4 digitsRange: 1nF-1uFAccuracy: 100Hz: /

1KHz: 0.3% ± 2 digits

10KHz: 0.4% ± 2 digits

100KHz: 1% ± 4 digitsRange: 1pF-1nFAccuracy:

100Hz: /

1KHz: 2% ± 2 digits

10KHz: 1.5% ± 2 digits

100KHz: 2% ± 4 digits

Inductance (L)

Range: 1H-100HAccuracy:

100Hz: 2% ± 5 digits

1KHz: 2% ± 5 digits

10KHz: /

100KHz: /Range: 1mH-1HAccuracy:

100Hz: 0.4% ± 5 digits

1KHz: 0.3% ± 2 digits

10KHz: 0.4% ± 3 digits

100KHz: 2.5% ± 5 digitsRange: 10uH-1mHAccuracy:

100Hz: 3% ± 5 digits

1KHz: 0.5% ± 4 digits

10KHz: 0.5% ± 3 digits

100KHz: 1.5% ± 5 digitsRange: 1uH-10uHAccuracy:

100Hz: /

1KHz: 2% ± 5 digits

10KHz: 2% ± 5 digits

100KHz: 4% ± 5 digits

Resistance (R)

Range: 1MΩ-10MΩAccuracy:

100Hz: 5% ± 4 digits

1KHz: 3% ± 3 digits

10KHz: /

100KHz: /Range: 1KΩ-1MΩAccuracy:

100Hz: 0.4% ± 4 digits

1KHz: 0.2% ± 2 digits

10KHz: 0.3% ± 3 digits

100KHz: 0.6% ± 5 digitsRange: 1Ω-1KΩAccuracy:

100Hz: 1.5% ± 4 digits

1KHz: 0.3% ± 2 digits

10KHz: 0.3% ± 3 digits

100KHz: 0.6% ± 5 digitsRange: 10mΩ-1ΩAccuracy:

100Hz: 4% ± 4 digits

1KHz: 2% ± 5 digits

10KHz: 2% ± 5 digits

100KHz: 5% ± 5 digits