ET4401 LCR Meter 0.2% Accuracy 10 Test Frequencies 100Hz–10kHz 5-Digit TFT Display Inductance Capacitance Resistance Tester with RS232/USB DCR & Sorting Function

The ET4401 LCR Meter is a professional benchtop component analyzer designed for accurate and efficient measurement of inductance, capacitance, resistance, and impedance parameters in industrial and laboratory environments.Featuring 10 selectable test frequencies from 100Hz to 10kHz, the ET4401 adapts to a wide range of testing requirements, from low-frequency passive components to higher-frequency circuit analysis. Its 3.5-inch TFT LCD provides a clear dual-display interface, showing both primary parameters (L/C/R/Z) and secondary parameters (X, D, Q, θ, ESR) with 5-digit resolution, ensuring precise and reliable readings.The meter supports a wide measurement range, covering inductance from 0.001µH to 9999H, capacitance from 0.001pF to 99.999mF, and resistance from 0.0001Ω to 99.99MΩ, with a basic accuracy of 0.2%. Adjustable measurement speeds (2/4/8 readings per second), six fixed test voltage levels (0.1V–2V), and an internal DC bias up to 1500mV provide flexible testing conditions for various components.For industrial efficiency, the ET4401 includes open and short circuit calibration, electrolytic capacitor testing, and DC resistance (DCR) measurement. Its integrated comparator and sorting function allows up to 5 groups of pass/fail classification, making it ideal for quality control and production line screening.With RS232 and USB Device interfaces, SCPI communication support, bilingual menu options (English/Chinese), adjustable backlight brightness, and a robust benchtop design, the ET4401 is a reliable solution for engineers, technicians, manufacturers, and educational institutions requiring precision and productivity.

• igh Precision LCR Measurement： Industrial-grade LCR meter with 0.2% basic accuracy, supporting precise measurement of Inductance (0.001µH–9999H), Capacitance (0.001pF–99.999mF), and Resistance (0.0001Ω–99.99MΩ)—ideal for R&D labs, QC inspection, and production lines.
• 10 Selectable Test Frequencies： Supports 10 test frequency points (100Hz, 120Hz, 200Hz, 400Hz, 800Hz, 1kHz, 2kHz, 4kHz, 8kHz, 10kHz), enabling accurate component analysis under different operating conditions.
• Dual 5-Digit TFT Display： Equipped with a 3.5” TFT LCD, simultaneously displays primary parameters (L/C/R/Z) and secondary parameters (X/D/Q/θ/ESR) with dual 5-digit resolution for fast and intuitive diagnostics.
• Advanced Test & Calibration Functions： Features DCR measurement, electrolytic capacitor mode, open & short circuit calibration, adjustable test speed (2/4/8 readings per second), six fixed test voltages (0.1V–2V), and internal DC bias (0–1500mV).
• Industrial Interfaces & Sorting Capability： Built-in RS232 and USB Device interfaces, SCPI protocol support, and 5-group comparator sorting with customizable tolerance limits (-50% to +50%) for efficient batch testing and automated systems.