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Transistor testers for identifying and analysing semiconductors including BJT, MOSFET and diodes. Fast and accurate component detection.
There are 2 products.
Availability: 33 In StockThe ZT-980E is a large-size 6000-count True-RMS digital multimeter designed for technicians, electricians and electronics repair. It includes a transistor tester, AC/DC voltage and current measurement, resistance, continuity, diode and frequency testing.
The oversized display provides excellent visibility for bench work and detailed diagnostics. With auto-range selection and durable build, it is ideal for both professional and DIY use. 🔧
UK stock with VAT invoice and fast delivery included. 🇬🇧
Availability: 100 In StockZOYI ZT-XT1 2-in-1 Transistor Tester and True RMS Digital Multimeter
A professional electronics diagnostic tool combining automatic component identification with accurate AC/DC electrical measurement. The ZT-XT1 supports compatible BJT transistors, MOSFETs, IGBTs, diodes, Zener diodes, resistors, capacitors and inductors, displaying component type, pin layout and available parameters on its clear 2.4-inch colour IPS screen.
- True RMS AC/DC voltage and current measurement
- Smart component and pin-layout identification
- Capacitance, ESR, resistance and inductance testing
- DS18B20 and DHT11 sensor support
- USB firmware-upgrade capability
Ideal for electronics repair, PCB diagnostics, workshops, laboratories, students and advanced DIY projects.
Transistor Testers for Semiconductor Identification & Electronics Repair
ZOYI transistor testers are designed to automatically identify and analyse compatible semiconductor components such as transistors, MOSFETs, diodes and other electronic components. They are useful for electronics repair, prototyping, component sorting and workshop diagnostics where fast identification can save time during fault finding.
What Can a Transistor Tester Do?
- Automatically identify supported transistor types
- Test compatible MOSFETs and semiconductor devices
- Identify diodes and determine polarity
- Assist with component sorting and replacement
- Support PCB troubleshooting and electronics repair
- Provide component parameters supported by the individual tester model
Transistor Tester or Digital Multimeter?
A digital multimeter is ideal for general voltage, resistance, continuity and diode measurements. A dedicated transistor tester is more convenient when you need automatic semiconductor identification and additional component information during electronics diagnostics.
Common Uses for Transistor Testers
Transistor testers are commonly used for PCB repair, electronics servicing, component identification, prototyping and checking salvaged components. They are particularly useful when component markings are difficult to read or when several semiconductor devices need to be identified quickly.
Need tools for capacitors, inductors and surface-mount components as well? Browse our electronic component testers or explore SMD testers and LCR tweezers .
ZOYI Transistor Tester Manuals & Support
Already own a ZOYI transistor tester? Visit ZOYI Manuals & Firmware Downloads for available product manuals, documentation, firmware and software.

