ZOYI ZT-MD1 Measuring Tweezers-Component Tester FNIRSI LCR-ST1

Product detailed description

The ZOYI ZT-MD1 is a professional LCR measuring tweezer that allows for quick and accurate measurement of passive electronic components such as resistors, capacitors and inductors - including advanced parameters such as ESR, Q factor or dissipation factor (D). The device features a colour OLED display and intuitive operation with automatic component type recognition. Thanks to its precise measurement, wide range and excellent display readability, the ZT-MD1 is an ideal tool not only for professionals in service, manufacturing and development, but also for hobbyists and DIY enthusiasts working with SMD or THT components.

Compared to traditional benchtop LCR meters, it offers significantly smaller dimensions, better portability and faster work when measuring directly on printed circuit boards. The USB-C connection allows not only charging of the built-in battery, but also exporting measured data to a computer and updating the firmware. The overall workmanship is at a very good level - the tester has a metal construction with replaceable measuring tips and a compact protective case in the package.

Typical applications:

• Characterisation of SMD/THR passive components (capacitors, inductors, resistors) on and off the PCB.
• Quick range tests, continuity checks and simple diode tests.
• Verification of ESR, quality, Q‑factor, etc.

Pros and cons:

• Pros: Compact, accurate measurement – “9/10 of a benchtop LCR's functionality for a tenth of the price”; clear OLED; data export logic (CSV); easy firmware upgrade.
• Cons: Tips may be blunter - some recommend grinding them; diodes measure only common ones (does not detect LED/Zener); no offset mode for measuring by connecting to wires; limits for large electrolytes/lossy coils.

Specifications:

• Model: ZOYI ZT-MD1 / FNIRSI LCR-ST1
• Measured values: resistance (R), capacitance (C), inductance (L), ESR, Q factor, D factor (dissipation factor), diode test, continuity
• Resistance measurement range: 10 mΩ to 10 MΩ
• Capacitance measurement range: 1 pF to 20 mF
• Inductance measurement range: 1 µH to 60 H
• Measuring frequency: switchable – 100 Hz, 1 kHz, 10 kHz
• Test voltage: selectable 0.3 V or 0.6 V (suitable for in-circuit measurement)
• Display: 1.14" colour OLED with high contrast and good readability even at an angle
• Power supply: integrated Li-ion battery (400 mAh), charging via USB-C (5V/1A)
• Automatic functions: auto-component identification, automatic range selection, auto power-off
• Accuracy: up to ±0.5% on main ranges
• PC connectivity: USB-C for firmware update and data export (CSV)
• Menu language: English / Chinese
• Dimensions: approx. 146 × 30 × 18 mm
• Weight: approximately 40 g
• Tweezers material: metal arms with replaceable sharp tips

Package contents:

• 1× ZOYI ZT-MD1 measuring tweezers
• 1× USB-C cable
• 1× Carry case
• 2× Spare measuring tips
• 1× User manual

Comment:

• This product is not a self-contained functional unit and may require expert handling.
• Product photos are for illustrative purposes only. Actual appearance may vary in details (e.g. logo or display language).
• Inaccurate readings may occur when measuring large electrolytic capacitors or coils with a high dissipation factor – it is recommended to measure at a lower frequency.