FNIRSI LCR-ST2 100kHz LCR ESR Meter Tweezer | SMD & Through-Hole Component Tester

All-in-One Core for Electronics Testing

The FNIRSI LCR-ST2 LCR ESR Meter Tweezer combines measurement for SMD and through-hole components in a single, portable instrument. It helps you verify resistors, capacitors, inductors, diodes, and continuity, while also checking voltage levels. The smart auto-sort feature highlights abnormal components so you can focus your debugging efforts without flipping between tools.

• All-in-one tester for SMD and through-hole parts
• Smart auto-sort flags abnormal components
• Four RMS test levels for different test conditions
• Wide ranges across R, C, L, and voltage

Comprehensive Measurements from RF to Power Rails

With a full-range scan from 100 Hz to 100 kHz, the LCR-ST2 covers a broad spectrum, including tiny RF parts and large electrolytics. It supports precise ranges: resistors 10 mΩ to 10 MΩ, capacitors 1 pF to 22 mF, inductors 1 μH to 10 H, diodes up to 0.7 V, and voltage tests up to ±30 V.

Two-Display Insights for Deeper Analysis

Primary parameters read R, C, L, and Z while secondary readings X, D, Q, and θ give you additional relationships, all visible on a bright 1.47-inch display. Left or right-handed operation adapts to your workflow.

Design for Everyday Use

The meter runs on a rechargeable 300 mAh battery with USB-C charging, auto power-off, and a sturdy rear magnet. A plug-and-swap probe design keeps your workflow fluid as you switch probes between measurements.

What’s in the Kit

• Kelvin clips for accurate contact
• Gold-plated tweezer tips for SMD parts
• Hooks and a storage pouch

Why It Matters for Electronics Diagnostics

While not a guarantee of a component’s performance, the LCR-ST2 provides consistent, repeatable data to guide troubleshooting, verification, and repair processes across a range of hobbyist and professional settings.