Description
Product Overview
The HiLetgo LCR‑T4 is a digital LCR meter designed for precise measurement of inductance (L), capacitance (C) and resistance (R). Housed in a lightweight 44‑gram green‑yellow case, it features a 128×64 pixel LCD that displays both numeric data and simple graphics, ensuring clear readability even in bright environments. Operating on a 9 V battery (not included) or a DC source between 6.8‑12 V, the device automatically shuts down with a minimal 20 nA standby current, extending battery life. Core specifications include a 1.7 second detection time for individual components and a one‑minute bulk capacitor test, making it suitable for both quick checks and detailed analysis.
Usage
Designed for electronics enthusiasts, repair technicians and small‑scale engineers, this meter excels in workshop benches, field service kits and educational labs. Whether you are troubleshooting a faulty transistor, verifying MOSFET gate thresholds, or measuring capacitor values in a prototype circuit, the LCR‑T4 provides instant feedback. Its compact size allows it to fit into a tool bag, and the battery operation ensures functionality where mains power is unavailable. 
Why Choose Us
HiLetgo combines reliable Chinese manufacturing with rigorous quality control, delivering a meter that meets professional standards without the premium price tag. The automatic detection of NPN/PNP transistors, N‑channel/P‑channel MOSFETs, diodes, resistors and capacitors reduces user error and speeds up testing workflows. The device’s low standby current and durable plastic enclosure guarantee long‑term performance, while the clear LCD minimizes misreading in noisy environments.
Key Features
- Fast 1.7‑second component detection for rapid troubleshooting.
- 128×64 LCD displays measurements and simple graphics clearly.
- Automatic identification of transistors, MOSFETs, diodes, resistors and capacitors.
- Dual power options: 9 V battery or 6.8‑12 V DC with auto‑shutdown at 20 nA.
- Measures MOSFET gate threshold voltage, gate capacitance, and transistor β gain.
FAQ
What types of components can the LCR‑T4 test?
The meter automatically detects and measures NPN and PNP transistors, N‑channel and P‑channel MOSFETs, diodes, resistors, capacitors and can also evaluate bulk capacitors.
Can I use the meter without a battery?
Yes, it can be powered by an external DC source ranging from 6.8 V to 12 V, making it versatile for bench or field use.
How accurate is the gate threshold voltage measurement for MOSFETs?
The device provides a reliable gate threshold voltage reading suitable for hobbyist and light‑professional applications, with typical accuracy within ±5% of the true value.
Is the LCD readable in bright lighting?
The 128×64 pixel LCD offers high contrast and backlighting, ensuring clear visibility even under strong ambient light.
What is the standby power consumption?
When idle, the meter draws only about 20 nA, greatly extending battery life between uses.
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