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ZOYI ZT-703S Firmware Upgrade Guide – Fix Insufficient Memory Error (Step-by-Step) 03/21/2026 20:27:22
Component Testers
🔥 Best selling component testers for professional and DIY electronics
Professional component testers for accurate measurement of inductance (L), capacitance (C), resistance (R), transistor parameters and battery internal resistance. Suitable for electronics repair, diagnostics, PCB testing and engineering use. 🇬🇧 UK stock with fast delivery and warranty included.
There are 8 products.
Availability: 20 In Stock🔧 The ZT-DQ02 is a compact and accurate handheld LCR meter designed for technicians, engineers and electronics hobbyists. It measures inductance, capacitance, resistance, ESR and battery internal resistance with excellent stability and fast response. 📊
Its clear LCD display, auto-range functions and high-precision test clips make it ideal for diagnosing components, checking battery health and validating SMD parts on the bench or in the field. 📐
Perfect for repair shops, workshops and DIY electronics projects. UK stock with VAT invoice included. 🇬🇧
Availability: 10 In Stock🔬 The ZT-MD1 is a smart LCR tweezer designed for fast, accurate testing of SMD components including capacitors, resistors and inductors. With auto L/C/R recognition and a bright OLED display, it delivers precise measurements even on tiny surface-mount parts. 📟
Perfect for PCB diagnostics, prototyping, mobile repair and component sorting. Lightweight, ergonomic and USB-C rechargeable, the ZT-MD1 is ideal for bench and field electronics work. ⚡
UK stock with VAT invoice and fast delivery. 🇬🇧
Availability: 9 In Stock🔬 The ZT-MD2 is a high-precision smart LCR tweezer designed for fast testing of SMD capacitors, resistors and inductors. With a powerful 100kHz test frequency, auto L/C/R detection and an OLED display, it provides lab-grade accuracy in a compact handheld tool. 📟
Perfect for electronics repair, PCB diagnostics, prototyping and component sorting. The USB-C rechargeable battery makes it convenient for daily bench or field use. ⚡
UK stock with VAT invoice and fast delivery. 🇬🇧
Availability: 11 In Stock⚡ The ZT-1000R is a professional insulation tester and True-RMS multimeter designed for electricians, maintenance engineers and safety inspections. It offers insulation testing up to 1000V alongside full multimeter functions including voltage, current, resistance, continuity and diode checks. 📊
With its clear backlit LCD, strong insulation ranges and reliable True-RMS accuracy, it is ideal for testing motors, cables, wiring installations and electrical equipment. The durable design ensures stable performance in both industrial and domestic environments. 🔧
UK stock with VAT invoice and fast delivery included. 🇬🇧
Availability: 10 In Stock🔋 The ZT-XR1 is a high-precision battery internal resistance tester combined with a 25,000-count True-RMS digital multimeter. It measures mΩ battery resistance, voltage, frequency, continuity, diodes and more — making it ideal for repair shops, technicians and hobbyists. 📊
Its large display, fast auto-range function and accurate mΩ readings make it perfect for diagnosing lithium, AA/AAA, NiMH and rechargeable battery health. The ZT-XR1 ensures you can quickly identify weak or failing batteries under load. ⚡
UK stock with VAT invoice and fast delivery. 🇬🇧
Availability: 100 In Stock🔧 High-precision 2-in-1 transistor tester and True RMS digital multimeter for testing semiconductors, resistors, capacitors, MOSFETs, diodes, and more. Ideal for electronics repair, engineering, workshops, and DIY use.
Availability: 36 In Stock📟 The 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: 10 In Stock📏 Fast and accurate LCR measurement with 100kHz digital bridge technology
📏 High-precision LCR meter with 100kHz test frequency for accurate measurement of capacitance, inductance, resistance, ESR and impedance. Ideal for electronics repair, SMD testing and professional use.

