The connector's airtight socket adopts glass sintering technology, with a contact spacing of 1.27mm and a line spacing of 1.1mm. The plug adopts a flexible twisted wire pin (twisted pin) and is suitable for wire cross-sectional areas of 0.07mm²~0.15mm². The shell size and installation method can be customized according to requirements. It is mainly used for electrical signal connection between the inside and outside of sealed containers, with the characteristics of small size, light weight, reliable connection, anti-interference, and anti-impact and vibration.