The JTX CT-1 (also known as JTXTOOLS CT-1) is a specialized, high-precision diagnostic tool engineered specifically for testing coils, inductors, and power chokes on mobile phone motherboards, PC/laptop motherboards, and other electronic PCBs . Unlike traditional multimeters that measure resistance, the CT-1 uses electromagnetic induction sensing to detect whether a coil is actively functioning within a circuit . This non-contact, rapid-fault-detection method allows technicians to pinpoint failing components instantly without de-soldering or complex setup .

Key Features

• Electromagnetic Induction (Non-Contact) Testing Method – Unlike multimeters that rely on resistance (ohm) readings, the CT-1 uses sensitive electromagnetic field detection to determine if a coil (inductor) is actively functioning within a live circuit . This allows for fast and accurate diagnosis of PC motherboards, GPU cards, and phone logic boards.
• Rapid Fault Detection & Instant Feedback – The tool provides multi-sensory feedback to indicate component health. A Green Light (and often a simultaneous buzzer tone) activates when a functional, energized coil is detected, confirming the component is working properly .
• High Precision & Stability – Engineered for high stability and precision, the CT-1 reliably tests small surface-mount components (SMD) and power inductors, ensuring consistent accuracy for technicians performing micro-soldering and intricate board repairs .
• Ultra-Portable Pen-Style Design – Ergonomically shaped like a pen and compact in size (approx. 115×55×20mm), it easily slides into a pocket or toolkit. It is powered by 2 x AAA batteries, making it ready for instant, cordless use on the go .