LCR Tester FNIRSI LCR-ST2

FNIRSI LCR-ST2 LCR Tester

The FNIRSI LCR-ST2 is a precision instrument designed for testing electronic components with accuracy, speed, and ease of use. It supports multiple measurement frequencies and test voltage levels, intelligent analysis functions, and offers two connection methods for components under test. Featuring a clear 1.47-inch HD color display with automatic image rotation, a compact tweezers-style design, and a rechargeable 300 mAh lithium battery providing approximately 3 hours of operation, this tester is ideal for service stations and field work. It facilitates both individual component diagnosis and batch testing.

Wide Measurement Range and Parameter Analysis

The device measures resistance from 10 m 3 to 10 M 3, capacitance from 1 pF to 22 mF, inductance from 1 BCH to 10 H, voltage up to B130 V, and diodes with forward voltage up to 0.7 V. It displays key electrical parameters including dissipation factor (D), quality factor (Q), impedance (Z), reactance (X), phase angle (B8), and equivalent series resistance (ESR). Automatic recognition of resistors, capacitors, and inductors accelerates testing by eliminating manual selection of measurement types.

Flexible Settings for Various Applications

The tester offers five selectable test frequencies: 100 Hz, 120 Hz, 1 kHz, 10 kHz, and 100 kHz, enabling professional analysis of diverse electronic components. Four RMS test voltage levels (0.1 V, 0.3 V, 0.6 V, and 1.0 V) can be chosen to optimize measurement stability and accuracy based on component characteristics.

Intelligent Features to Enhance Diagnostics

Equipped with a full-band scanning mode from 100 Hz to 100 kHz, the device allows rapid frequency response analysis with a single measurement. It includes an intelligent sorting function that classifies components as compliant or non-compliant based on nominal values and tolerances, useful for mass production testing. The tester simultaneously displays equivalent series and parallel values to minimize parasitic effects and improve accuracy. Additional functions include HOLD, Max, and Min for convenient result recording and analysis, and the ability to display two measurement parameters simultaneously.

Two Measurement Methods and User Convenience

The LCR-ST2 combines a tweezers design with an optional Kelvin probe. Straight and curved probe tips facilitate gripping small surface-mounted components, while the Kelvin clamp enables precise four-wire measurements of larger or through-hole components. The 1.47-inch HD color display features auto-rotate for comfortable use by right- or left-handed users. A magnetic mount allows easy storage and accessibility.

Mobile and Ready-to-Use Design

Its lightweight tweezers-style housing suits laboratory, service, and field environments. The built-in 300 mAh lithium battery supports up to approximately 3 hours of continuous use, rechargeable via a modern USB-C port. Voltage measurement capability up to B130 V extends its application to advanced electronic diagnostics.

Included Accessories

• LCR tester
• Storage case
• Curved probe
• Shorting plate
• Data cable
• User manual

Technical Specifications

• Manufacturer: FNIRSI
• Model: LCR-ST2
• Standby time: Approximately 3 hours
• Display: 1.47" HD color
• Weight: Approximately 60.8 g
• Operating temperature: 0 B0C to 50 B0C (humidity 2 75%)
• Dimensions: 31 D7 170.7 D7 20.3 mm
• Interface: USB Type-C
• Storage temperature: -20 B0C to 60 B0C (humidity 2 75%)