Full Protection Smart Power Supply Test Pin

The KOOCU KC‑66 Universal Power On Needle is a professional‑grade power boot test instrument built for mobile phone repair technicians. Equipped with a clear digital display screen, it allows users to read real‑time voltage data directly during motherboard power‑on testing. This smart power‑on probe delivers stable power supply for phone mainboard debugging, fault diagnosis, and boot‑up testing without installing the phone battery. It is an essential bench tool for repair shops and DIY electronics repair enthusiasts.   Key Features ✅ Real‑time Digital Display: Built‑in high‑definition digital tube, directly shows voltage values for intuitive observation of working status. ✅ Full Protection Design: Integrated multiple protection circuits, prevents damage from over‑voltage, over‑current and short‑circuit to expensive phone motherboards. ✅ Smart Core Chip: Adopts high‑quality smart control chip for stable output, reduces signal fluctuation during repair testing. ✅ Universal Power‑on Pin:…