LCR-7 Transistor Tester — precise, compact testing for electronics work Key benefits and why you need it Accurate component identification and measurement: quickly test NPN/PNP transistors, MOSFETs, diodes (including Zener), resistors and capacitors to confirm part health and specifications without guesswork. Clear results that speed repairs: the vivid 5-inch TFT backlight color display presents readings in an easy-to-read format so you can interpret measurements at a glance, even in varied lighting. Simple, reliable operation: one-button control reduces setup time and simplifies repeated tests; automatic shut-off preserves battery life when the device is idle. Versatile diagnostics: infrared waveform detection and dedicated Zener diode testing give deeper insight when troubleshooting circuits or validating components for reuse. What makes it stand out Multi-component coverage in a single handheld unit, reducing the need to carry multiple meters or testers. Color TFT display improves visibility and reduces errors when comparing values or identifying component types. Designed for both hobbyists and professionals who need fast, repeatable tests during repair, prototyping, or quality checks. Compatibility and performance Supports common discrete components: NPN and PNP bipolar transistors, MOSFETs, diodes (including Zener), resistors and capacitors. Built for precise measurement and clear readout; ideal when correct component identification and parameter checks are critical. Practical applications (real-world use cases) PCB troubleshooting: rapidly identify faulty transistors, diodes or capacitors on a circuit board to speed diagnosis and repair. Component verification during rebuilds: confirm salvaged or replacement MOSFETs and transistors meet expected parameters before installation. Prototyping and bench testing: validate resistor and capacitor values and check Zener diodes and infrared signal components while assembling or debugging circuits. Key functions at a glance Measures: NPN/PNP transistors, MOSFETs, resistors, capacitors, diodes (including Zener) Detects: infrared waveforms Display: 5-inch TFT backlight color screen for clear, readable results Operation: one-button control with automatic shut-off to conserve power Reliable tool for accurate testing and faster workflows — the LCR-7 provides essential measurement functions and a clear color display to help you diagnose, verify, and validate electronic components efficiently.