T4 Transistor Tester Key benefits - Automatic recognition of a wide range of components: NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including dual diodes), thyristors, triodes, resistors and capacitors. This all-in-one capability streamlines testing and reduces manual identification so you can focus on your project. - Clear graphical display: 128 x 64 high-contrast LCD provides easy-to-read measurements. The graphic display shows important values such as transistor gain (hFE) and base, as well as MOSFET gate threshold voltage and gate capacitance in an accessible format. - Fast and efficient testing: valid components can be tested accurately in as little as 2 seconds. Larger capacitors may take up to a minute, but overall efficiency reduces waiting times in most test scenarios. - Smart power management: idle current consumption is below 20 nA with an auto shut-off feature to extend battery life when not in use. What it tests and identifies - Automatically recognizes NPN and PNP transistors; N-channel and P-channel MOSFETs; diodes (including dual diodes); thyristors; triodes; resistors and capacitors. Display and measurements - Graphical display on a 128 x 64 high-contrast LCD provides clear readouts of key parameters. Measurements include transistor gain (hFE) and base for transistors, and MOSFET gate threshold voltage and gate capacitance. Performance and speed - Test results for valid components are available in as little as 2 seconds. Testing larger capacitors may require up to about one minute, but the device enhances efficiency for the majority of testing situations. Power management - Intelligent power management with an auto shut-off feature keeps idle current under 20 nA, helping to extend battery life during intermittent use. Use scenarios - In-circuit testing during electronics repair: quickly identify component types and characteristics to select appropriate replacements. - Prototyping and circuit debugging in a workshop or lab: verify transistor parameters and MOSFET characteristics while developing circuits. - Educational use: students or trainees learn to identify components and read key parameters with a single, reliable tool.