Welding-free installation: The screw crimping method is used, allowing installation with just a screwdriver for simple and fast setup. Multiple specifications available: Features a silicone waterproof jacket at the housing joint for a tight, waterproof seal, with various core options to meet different application needs. PC pins with plug resistance; constructed with pure copper gold-plated contacts for anti-oxidation properties and extended service life. Waterproof design: IP68-rated, 250V 2/3/4/5-core LP20 solder-free butt-type waterproof aviation connector. Connector housing made of PA66 and PA6 materials, providing excellent corrosion resistance, flexibility, and reliable performance in low-temperature environments. Application: Suitable for use in communication equipment, instruments, computers, programmable machines, alarm systems, and bridge electronic equipment.