GM328A Multi-function Transistor Tester and ESR Meter

The GM328A Multi-function Transistor Tester and ESR Meter is an indispensable diagnostic tool for electronics engineers, makers, and students. Built on the powerful ATmega328 microcontroller, this pre-soldered black edition automatically detects and analyzes a wide range of electronic components. It features a vibrant 1.8-inch TFT color display that clearly presents pin configurations, component types, and measured parameters in real-time, eliminating guesswork during circuit debugging and component sorting.

This versatile instrument is capable of automatically identifying NPN and PNP bipolar transistors, N-channel and P-channel MOSFETs, JFETs, diodes, dual diodes, thyristors, and triacs. Beyond semiconductor testing, it functions as a highly accurate LCR meter, measuring resistance, capacitance (including Equivalent Series Resistance - ESR), and inductance. It can be powered via a standard 9V battery or an external 6.8V to 12V DC power supply, making it perfect for both benchtop testing and portable field use.

Features:

• Automatic Component Detection: Instantly identifies transistors, diodes, MOSFETs, thyristors, and resistors with automatic pinout mapping.
• Color TFT Display: Features a high-resolution 160x128 color screen for clear and intuitive data visualization.
• Comprehensive LCR Metering: Accurately measures resistance, capacitance, and inductance with high resolution.
• Integrated ESR Tester: Measures the Equivalent Series Resistance (ESR) of capacitors greater than 2uF, crucial for troubleshooting power supplies.
• Dual Power Options: Supports a 9V battery (6F22) or external DC power input (6.8V to 12V) via an onboard power jack.
• Rotary Encoder Control: Simple one-button operation with a rotary encoder for menu navigation and quick testing.
• Pre-Soldered Black PCB: Fully assembled and ready to use out of the box, featuring a sleek black aesthetic.

Package Includes:

1 x GM328A Multi-function Transistor Tester (Black PCB - Fully Soldered)