FNIRSI LCR-ST1 Precision Mini Smart Digital Tweezer LCR SMD & ESR Tester

The FNIRSI LCR-ST1 is a versatile handheld component tester designed for accurate measurement of inductance (L), capacitance (C), resistance (R), and equivalent series resistance (ESR). With its smart tweezer probes and wide measurement range, the LCR-ST1 makes component testing fast, reliable, and easy, whether you’re debugging circuits, sorting parts, or verifying components during assembly.

Equipped with a 1.8″ color display, multiple test frequencies, and automatic component identification, this meter delivers precise measurements with minimal setup. Its compact design with USB C rechargeable battery adds portability and convenience for technicians, hobbyists, and engineers.

Highlights:

• Measures inductance (L), capacitance (C), resistance (R), and ESR.
• Smart tweezer probes for SMD & small component handling.
• Multiple test frequencies for versatile analysis.
• Automatic component identification.
• 1.8″ color display with easy to read results.
• USB C rechargeable battery for portable use.
• Compact and ergonomic design.

Specifications:

General

• Model: FNIRSI LCR-ST1.
• Display: 1.14" color screen.
• Power: 250mAh lithium rechargeable battery, USB C (5V/1A).
• Parameter Display: ESR, D value, Q value, Z value, X value. 
• Recognition Measurement: Auto.
• Shutdown: Auto.
• Language Support: Chinese & English.
• Dimensions: ~28x19x150mm.
• Weight: ~150g.

Measurement Ranges

• Resistance (R): 10mΩ-10MΩ.
• Capacitance (C): 1pF-22mF.
• Inductance (L): 1μh-10H.
• Diode: On voltage 0.7V.
  
• Test Frequencies: 100Hz, 1kHz, 10KHz.
• Test Levels: 0.3V, 0.6V RMS.

Ideal For:

• 🔍 Component testing in electronics repair & prototyping.
• 📦 SMD and through hole part verification.
• 🛠 Workshop and lab component analysis.
• 🎓 STEM education & learning electronics measurement.
• 🤖 Makers & hobbyists working with discrete parts.
• 📊 Quality control and sorting on production lines.