🎯 What Is This?
The FNIRSI LCR-ST1 is a revolutionary smart tweezer that instantly identifies and measures any electronic component you touch. No more guessing what that tiny SMD component is – simply grab it with the tweezers and get instant, accurate readings.
Perfect for electronics repair, component sorting, circuit design, and quality control.
⚡ Quick Specs
Physical: 40g weight • 1.14″ colour screen • 250mAh battery • USB-C charging
Measurements: L/C/R + ESR, D, Q, Z, X parameters • Auto component recognition
Ranges: 1pF-22mF • 1µH-10H • 10mΩ-10MΩ • Diode testing
Frequencies: 100Hz, 1kHz, 10kHz • Test voltages: 0.3V, 0.6V
🔬 Revolutionary Smart Detection
Why You Need This:
- Instantly identify mystery components on PCBs
- Sort mixed component batches quickly
- Verify component values before installation
- Test components without removing from circuit
Smart Features: • Auto Recognition – automatically detects resistor, capacitor, or inductor
• Three Test Frequencies – 100Hz, 1kHz, 10kHz for different applications
• Dual Test Voltages – 0.3V for in-circuit, 0.6V for isolated components
• Live Circuit Testing – low voltage prevents activating semiconductor junctions
• Component Polarity Detection – shows diode orientation automatically
• Data Logging – stores measurements as CSV files for PC analysis
📏 Precision Measurement Ranges
Capacitance Testing: • Range: 1pF to 22mF (massive 22,000,000:1 ratio)
• Accuracy: ±1% typical, ±5% for large electrolytics
• Applications: Timing circuits, filters, power supplies, coupling capacitors
• ESR Measurement – identify faulty electrolytic capacitors instantly
Inductance Testing: • Range: 1µH to 10H (10,000,000:1 ratio)
• Accuracy: ±1% for most values
• Applications: Chokes, transformers, RF coils, switching regulators
• Q Factor Display – assess coil quality and losses
Resistance Testing: • Range: 10mΩ to 10MΩ (1,000,000:1 ratio)
• Ultra-low contact resistance: 2-5mΩ between tips
• Applications: Precision resistors, fuses, traces, connections
• Series resistance – shown for all reactive components
Diode Testing: • Forward voltage measurement – 0.1V to 16V range
• Automatic polarity detection – works regardless of probe orientation
• Standard diodes only – 0.7V typical (not suitable for LEDs)
👥 Who Uses This?
🔧 Electronics Repair Technicians
“Identify components on crowded PCBs instantly”
- Smartphone motherboard repair
- Laptop component identification
- TV power supply diagnosis
- Gaming console component testing
📱 Mobile Phone Repair Specialists
“Perfect for tiny 0201 and 0402 components”
- Capacitor failure diagnosis
- Filter component verification
- Power management IC support components
- Charging circuit analysis
🏭 Quality Control Engineers
“Sort and verify component batches quickly”
- Incoming component inspection
- Production line testing
- Batch verification
- Counterfeit component detection
🎓 Students & Educators
“Learn component identification hands-on”
- Electronics course practical work
- Component identification training
- Circuit analysis exercises
- Project component verification
🔬 R&D Engineers & Makers
“Verify prototype components instantly”
- Component characterisation
- Circuit design verification
- Prototype troubleshooting
- Arduino/Raspberry Pi project support
💡 Why Choose Smart Tweezers Over Traditional Methods?
Speed & Efficiency
- Instant Results – no need to remove components from board
- One-handed Operation – grab and read in seconds
- Auto Range/Mode – no manual setting adjustments
- Component Sorting – process hundreds of parts quickly
Accuracy Benefits
- No probe contact issues – firm mechanical grip
- Minimal lead inductance – accurate high-frequency measurements
- Kelvin connection – eliminates test lead resistance
- In-circuit capability – test without desoldering
Professional Features
- Multiple frequencies – see how components behave across spectrum
- ESR measurement – critical for electrolytic capacitor health
- Data logging – create component databases and test reports
- PC connectivity – export results for analysis
🛠️ Real-World Applications
SMD Component Identification
The Problem: Tiny surface-mount components with cryptic markings
The Solution: Touch with tweezers, get instant identification
- 0201, 0402, 0603, 0805 components and larger
- Unmarked components from component reels
- Components with worn or illegible markings
- Quick verification before placement
Circuit Board Repair
The Problem: Which component has failed?
The Solution: Test components while still on the board
- Identify faulty electrolytic capacitors by ESR
- Check resistor values without desoldering
- Verify inductor integrity in switching circuits
- Test diodes and their junction voltages
Component Sorting & Inventory
The Problem: Mixed component batches need sorting
The Solution: Rapid automated identification and cataloguing
- Sort salvaged components by value
- Verify component shipments against specifications
- Create component databases with measured values
- Quality control for manufacturing
🔋 Portable Professional Performance
Ultra-Portable Design
• 40g weight – lighter than most smartphones
• Comfortable grip – ergonomic tweezer design
• Sharp, precise tips – easily sharpenable for fine work
• Replaceable tips – curved tips included for different applications
• Protective case – organised storage and transport
Professional Display & Interface
• 1.14″ colour screen – bright, clear readings from any angle
• 4-digit precision – professional measurement resolution
• Intuitive controls – three-way switch plus power/memory buttons
• Auto-off function – preserves battery life
• Instant startup – ready to measure in 1 second
Data Management
• Internal memory – stores measurement history
• CSV export – connect via USB-C for PC analysis
• Measurement freeze – hold readings for documentation
• Firmware updates – keep your device current via USB
• PC software – analyse measurement trends and create reports
📦 Complete Professional Kit
Everything Included: ✅ LCR-ST1 main unit with sharp probe tips
✅ Curved probe tips for different component access
✅ USB-C charging and data cable
✅ Magnetic mounting plate for bench organisation
✅ Protective carrying case with foam inserts
✅ English/Chinese manual with measurement examples
Ready for immediate professional use – no additional purchases required
🛡️ Professional Quality & Support
Build Quality: • Precision construction – accurate tip-to-tip resistance under 5mΩ
• Replaceable tips – tool-free tip changing system
• Robust housing – designed for daily professional use
• Quality components – stable measurement circuitry
Certifications & Compliance: • CE Marked – legal for UK professional use
• RoHS Compliant – environmental safety standards
• FCC tested – no electromagnetic interference
• Calibrated – factory accuracy verification
Warranty & Support: • 1-year warranty covering manufacturing defects
• Lifetime technical support via email
• Free firmware updates with new features
• Replacement parts available – tips, cables, cases
🇬🇧 Perfect for UK Electronics Work
Designed for UK Applications: • 0.3V test voltage – safe for sensitive UK consumer electronics
• Multiple frequencies – suits both 50Hz mains and high-frequency circuits
• Precision measurement – meets UK technical standards
• Portable operation – perfect for field service work
💷 Outstanding Value for LCR-ST1: £29.50
Why This Price is Unbeatable:
- Professional measurement accuracy in portable format
- Multiple instruments combined in one device
- Data logging and PC connectivity included
- Complete kit with accessories and case
🚀 Transform Your Component Testing
Stop struggling with component identification. Get professional-grade testing capability that fits in your pocket and delivers laboratory accuracy every time.
Perfect for:
- Mobile device repair and diagnostics
- Electronics manufacturing quality control
- Educational and training applications
- R&D prototype development
- Component sorting and inventory management
- Field service and on-site repair
📦 Order Today – Fast UK Delivery • Free standard delivery (1-2 working days) • Express delivery available (next working day) • Secure payment – cards, PayPal, buy-now-pay-later • 60 days Money-back guarantee – full warranty protectio
✅ Professional Grade ✅ Ultra-Portable ✅ Complete Kit ✅ 1-Year Warranty ✅ Free UK Delivery
Make every component measurement count – order today!
Free UK Delivery /Dispatched from UK/ No Customs / No Extra Tax/
Review of FNIRSI LCR-ST1 Tweezers by TheHWcave
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