FNIRSI LC1020E Handheld LCR/ESR Meter - High-Precision Component Tester

The FNIRSI LC1020E is a professional-grade handheld LCR/ESR meter designed for precise measurement of electronic components. It offers high-accuracy testing for inductance (L), capacitance (C), resistance (R), impedance (Z), and equivalent series resistance (ESR), making it ideal for engineers, technicians, and electronics hobbyists. Its 2.8-inch TFT color display clearly shows both main and secondary parameters simultaneously, while smart auto component identification instantly recognizes R/L/C components for efficient testing.

With multi-frequency support up to 100 kHz, selectable test voltages, internal bias stabilization, and dual 3-terminal/5-terminal measurement modes, this device ensures highly accurate results even for sensitive components. The LC1020E also features pass/fail sorting, data logging, and audio-visual alerts, improving batch testing efficiency and quality control in production or field environments. Lightweight and battery-powered, it provides portable, cable-free testing anywhere.

Features

• High-precision 4.5-digit measurement with 0.05% basic accuracy
• Wide parameter support: L/C/R/Z with secondary parameters X, D, Q, , ESR
• Smart auto identification of resistors, inductors, and capacitors
• Multi-frequency test: 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz
• Selectable test voltages: 0.1 V, 0.3 V, 0.6 V RMS
• Internal bias voltage: 0 V / 0.5 V for stable readings
• Dual test ports: 3-terminal & 5-terminal (4-wire Kelvin)
• Dual-parameter display on 2.8" TFT screen
• Open & short calibration to eliminate system errors
• Data hold and logging mode for batch testing
• Pass/fail comparison with adjustable tolerance 0.1%-99.9%
• Compact, rechargeable design: 7 V, 3000 mAh lithium battery

Specifications

Model: LC1020E
Test Frequency: 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz
Basic Accuracy: 0.3%
Display: 2.8-inch TFT LCD
Display Digits: Main: 4.5 digits; Secondary: 4.5 digits

Measurement Parameters:

• Main: AUTO / R / C / L / Z
• Secondary: X / D / Q / / ESR

Measurement Ranges:

• L: 0-100 H
• C: 0-100 mF
• R: 0-10 M

Internal Bias: 0 V / 0.5 V
Test Level: 0.1 V, 0.3 V, 0.6 V RMS
Calibration Functions: Open circuit, short circuit
Comparison Function: Relative error vs nominal value, tolerance 0.1%-99.9%
Test Terminal Configuration: 3-terminal / 5-terminal
Output Impedance: 100
Communication Interface: USB Type-C (virtual serial port)
Other Features: Language settings, brightness adjustment, sound, auto power-off, calibration, system info

Precautions:

• Operate at 20 C 2 C, 80% RH
• Preheat instrument 30 min
• Use front panel test slots
• Perform open/short calibration before measurements

What's in the box
1 x LC1020E LCR/ESR Meter
1 x Data Cable
1 x Shorting Plate
1 x Kelvin Test Clip
2 x Test Leads (Black & Red)
1 x User Manual