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FNIRSI LCR-ST1 Smart Tweezers LCR Meter High-Precision SMD Tester 10kHz

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FNIRSI LCR-ST1 Smart Tweezers LCR Meter – High-Precision Handheld SMD Component Tester with 1.14" Color Screen & 10kHz Test Frequency

The FNIRSI LCR-ST1 is a revolutionary, ultra-compact smart tweezer LCR meter designed specifically for the rapid testing, sorting, and troubleshooting of Surface Mount Devices (SMD). Combining a high-contrast 1.14-inch color screen directly onto an ergonomic tweezer chassis, this intelligent pocket instrument allows for seamless one-handed testing of resistors, capacitors, inductors, and diodes directly on complex circuit boards.

Key Features:

  • One-Handed SMD Testing Efficiency: Seamlessly integrates premium mechanical tweezers with a high-precision LCR bridge meter for fast, dual-contact board diagnostics.
  • Smart Auto Component Identification: Instantly senses the component type and switches to the correct measurement mode (R, C, or L) with zero manual intervention.
  • Adjustable High-Frequency Sine Testing: Offers four selectable test frequencies ($100\text{Hz}$, $1\text{kHz}$, $10\text{kHz}$) to evaluate complex components under real-world operating conditions.
  • Premium Magnetic Gold-Plated Tips: Equipped with ultra-fine, exchangeable straight and curved gold-plated testing tips to reduce contact resistance and securely grip micro-miniature SMD packages (down to 0201 sizing).
  • Data Hold & Record Capture: Features internal memory tracking to log baseline values and freeze dynamic peak parameters with a single button press.
  • Rechargeable USB-C Power: Outfitted with an eco-friendly internal lithium battery charged via standard USB Type-C, providing reliable, continuous bench runtime.
  • Type Transistor Tester
Rs. 3,500.00 incl. taxes
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Ready to work out of the box!

All our meters are delivered with essential accessories and easy-to-follow instructional manual. Unbox and start measuring with confidence!

Warranty and returns?

All our meters come with 12 month warranty against manufacturing defects. Please read our returns and refund policy for more information.

Got Questions? Feel free to get in touch.

Product Overview

Streamline your PCB debugging, prototype development, and component sorting with the FNIRSI LCR-ST1 Smart Tweezer LCR Meter. Standard benchtop LCR meters with long test leads introduce extra capacitance and lead errors when dealing with micro-sized surface mount components.

The LCR-ST1 solves this by using a direct-contact tweezer arm design with a basic measurement accuracy of up to 0.3%. Weighing just 41 grams and featuring a 360-degree screen rotation utility, this tool allows both left- and right-handed technicians to read parameters clearly without ever breaking eye contact with the board.

Technical Specifications Matrix

Parameter / Function Measurement Range Supported Frequencies Basic Accuracy
Resistance (R) $0.1\Omega \text{ to } 20\text{M}\Omega$ $100\text{Hz}$, $1\text{kHz}$, $10\text{kHz}$ $\pm(0.3\% + 2 \text{ digits})$
Capacitance (C) $1\text{pF} \text{ to } 10\text{mF}$ $100\text{Hz}$, $1\text{kHz}$, $10\text{kHz}$ $\pm(0.5\% + 3 \text{ digits})$
Inductance (L) $1\mu\text{H} \text{ to } 1\text{H}$ $100\text{Hz}$, $1\text{kHz}$, $10\text{kHz}$ $\pm(0.5\% + 5 \text{ digits})$
Diode Test Forward voltage drop tracking ($0\text{V} \text{ to } 2\text{V}$) Continuous DC Auto Detect

General System Configuration & Hardware Details

  • Display Interface Panel: 1.14-inch High-Definition Full-Color Screen

  • Screen Rotation Geometry: 180° / 360° software UI flip configuration (Supports left/right-handed use)

  • Selectable Test Signal Voltages: $0.3\text{V}_\text{RMS}$ / $0.6\text{V}_\text{RMS}$ (Safe for in-circuit board testing)

  • Measurement Testing Speed: Adjustable Fast, Medium, and Slow update intervals

  • Tip Interface Architecture: Strong magnetic mechanical attachment with secure retention locking

  • Calibration Support Routine: Built-in automatic Open-Circuit / Short-Circuit zeroing

  • System Power Core: Rechargeable Internal Lithium Battery Cell

  • Charging Interface Port: USB Type-C Standard ($5\text{V} / 1\text{A}$)

  • Total Dimensions: $146\text{mm} \times 22\text{mm} \times 14\text{mm}$

  • Net Unit Mass Weight: $41 \text{ grams}$ (Ultra-lightweight pocket pen profile)

Targeted Industrial & Field Applications

  • SMD Rework & Mobile PCB Diagnostics: Instantly test microscopic SMD resistors, multilayer ceramic capacitors (MLCC), and surface-mount inductors on modern smartphones, tablets, and medical equipment.

  • Component Quality Sorting & Inward Inspection: Rapidly verify unlabeled or loose SMD components from component kits before placing them in inventory or pick-and-place feeders.

  • R&D Prototyping & Hardware Engineering: Expedite the population and validation of raw prototype circuit boards on engineering benches.

Package Contents

  • 1 x FNIRSI LCR-ST1 Smart Tweezer Main Unit

  • 1 x Pair of Straight Gold-Plated Test Tips

  • 1 x Pair of Curved Gold-Plated Test Tips

  • 1 x Magnetic Shield Protective Cap / Case

  • 1 x USB Type-C High-Speed Charging Cable

  • 1 x English User Operations Manual