FNIRSI LCR-ST2 Series 

2-in-1 Digital Tweezers LCR/ESR Meter with Auto Identification & Frequency Sweep

The FNIRSI LCR-ST2 Series includes two high-precision handheld LCR/ESR meters designed for rapid SMD diagnostics, automatic component recognition, and multi-parameter analysis.  

Key Features

 
• Fast SMD testing: precise tweezer probes for one-hand component measurement.

 
• Automatic R/L/C identification: detects component type instantly.

 
• Dual-parameter display: main value plus ESR, D, Q, Z, or X.

 
• Full-band sweep: scans frequencies to analyze component behavior.

 
• Smart sorting mode: tolerance grading for batch QC.

 
• HD auto-rotate screen: readable from any angle.

 
• Rechargeable compact body: lightweight, portable, magnetic housing.

Technical Specifications

 
• Test Frequencies: 100Hz / 120Hz / 1kHz / 10kHz / 100kHz

 
• Measured Parameters: R, C, L, ESR, D, Q, Z, X, θ

 
• Voltage Measurement: ±30V

 
• Diode Test: up to 0.7V Vf

 
• Test Levels: 0.1V / 0.3V / 0.6V / 1.0V RMS


 
• Display: 1.47" HD auto-rotate color screen

 
• Battery: 300mAh Li-ion, USB-C charging

 
• Runtime: approx. 3 hours


 
• Dimensions: 31 × 170.7 × 20.3 mm

 
• Weight: 60.8 g


 
• Operating Temperature: 0–50°C

 
• Storage Temperature: –20–60°C

Typical Applications

 
• SMD component identification and matching

 
• ESR testing for capacitor diagnostics

 
• PCB repair and troubleshooting

 
• Quality control sorting and tolerance checks

 
• (Plus) Precision testing of large inductors, resistors, capacitors

Package Contents

 
• LCR-ST2 meter, tweezer tip, shorting plate, USB-C cable, pouch

 
• Plus Version: adds a professional Kelvin 4-wire clip for accurate measurement of large or leaded components.

The FNIRSI LCR-ST2 Series delivers fast, accurate, portable LCR/ESR measurement for electronics repair, prototyping, and analysis.  
Choose the Standard model for SMD work or the Plus model for advanced 4-wire precision testing.