Electromagnetic Inductance Tester – PCB Coil Fault Detector
Electromagnetic Inductance Tester – PCB Coil Fault Detector
Gaqqee Electromagnetic Induction Inductance & Capacitance Tester
Diagnose faults on mobile phone motherboards faster than ever with this compact electromagnetic induction tester. Using non-contact proximity sensing, it instantly detects whether inductor coils and capacitors are functioning correctly — no specialist training required. A bright LED indicator gives you a clear pass/fail readout in seconds, making it an essential tool for any mobile phone repair technician or electronics enthusiast.
Made in Mainland China.
Key Features
- Electromagnetic Induction Detection: Proximity-sensing technology allows fast, non-contact fault diagnosis on live circuits without dismantling components.
- Intuitive LED Indicator: A single LED light illuminates when an inductor is working correctly — no oscilloscope or complex readout needed.
- Two Sensitivity Settings (High / Low): Switch between sensitivity levels to handle both standard and miniature SMD inductors accurately, minimising false readings.
- Compact & Lightweight Design: At just 75 × 15.15 × 5.8 mm and powered by a single CR 1220 button cell, it slips easily into any toolkit or pocket.
- Low Power Consumption: Efficient circuitry extends battery life so the tester is always ready when you need it.
- Wide Application: Suitable for mobile phones, tablets, laptops, and other consumer electronics motherboard repair scenarios.
Specifications
| Testing Method | Electromagnetic induction proximity sensing |
| Testing Accuracy | Two adjustable levels: High / Low |
| Display | LED indicator |
| Power Source | CR 1220 button cell battery |
| Dimensions | 75 × 15.15 × 5.8 mm |
| Power Consumption | Low |
| Condition | Brand new |
| Package Contents | 1 × Inductance / Capacitance Tester |
| Country of Origin | Mainland China |
How to Use
- Insert the CR 1220 battery and switch the device on — the power indicator LED will illuminate. If it does not light up, check or replace the battery.
- Bring the front probe end close to the inductor coil under test. If the LED illuminates, the inductor is functioning correctly.
- For small or miniature SMD inductors, set the sensitivity switch to the High setting for more precise detection.
- Safety Note: This tool performs live-circuit testing. Always exercise caution to avoid accidental electric shock during use.
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Frequently Asked Questions
Q: What types of components can this inductance tester detect?
A: The electromagnetic induction tester is designed primarily for detecting inductors and coils on mobile phone and computer motherboards. It works by proximity sensing — bringing the tip close to a coil generates an electromagnetic response, which triggers the LED indicator if the component is operational. It is ideal for SMD inductors, power coils, and similar inductive components found on PCBs.
Q: Do I need to remove the component from the board to test it?
A: No. This tester uses non-contact electromagnetic proximity sensing, so components can be tested directly on the live motherboard without desoldering or disassembly. Simply power on the device and bring the probe tip close to the inductor — the LED will indicate the result instantly.
Q: When should I use the High sensitivity setting versus the Low sensitivity setting?
A: Use the High sensitivity setting when testing very small or miniature SMD inductors, which generate a weaker electromagnetic field. The Low sensitivity setting is better suited to larger standard inductors and helps prevent false positive readings in densely populated circuit areas.
Q: What battery does the tester use and how long does it last?
A: The tester runs on a single CR 1220 button cell battery (included or readily available). Thanks to its low-power circuit design, the battery provides extended operational life under normal intermittent use — making it a cost-effective and always-ready diagnostic tool.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.