M&R Inductance Detector for Phone Motherboard PCB Repair Electromagnetic Fault Point Detection Check Tool

The YK-1, you immediately sense that this is a tool built for a specific task: diagnosing coils and inductors on PCBs, motherboards, and small electronic modules.

The form is compact, deliberately minimalist, and engineered to slide into a technician’s work-bench without fuss.

The case hides behind it a precision system that listens for the electromagnetic behavior of coils not just by measuring resistance, but by detecting inductive functionality.

When you place the tester over an unknown component, the YK-1 quietly goes to work.

You watch the indicator (often a green light) and detect whether the coil is responding as it should.

There’s an immediacy to that action: you’re no longer fumbling with test leads and probes, you’re simply pointing and judging.

It feels intuitive. The simplicity doesn’t mask its purpose:

this device is about speed, about isolating faults quickly, and giving you confidence in what you can repair or replace.

Over time, the YK-1 becomes less of a novelty and more of a constant in your electronics-repair ecosystem.

It sits on the bench, ready, always with one eye on it.

When a board comes in with a blinking fault or a dead power stage, you reach for it without hesitation.

It doesn’t do everything, but it does one thing very well — and that’s what makes it quietly indispensable.

When the repair job needs clarity, the YK-1 gives you that clarity.

Features:

• Electromagnetic-induction testing method for coils and inductors.
• Rapid fault-detection capability green indicator light shows component is functioning.
• High precision and stability in measurement for small board components.
• Simple operation with minimal setup point and test workflow.
• Compact form factor suited to bench-use in mobile phone and motherboard repair.

Specifications:

Model:YK-1

Test method:Electromagnetic induction sensing

Indicator output:Green light for functioning coil

Application board types:Mobile phone, PC/motherboard components

Gross weight:35 g