- Amphenol LTW Technology (ALTW) is a leader in rugged and harsh environment interconnects with the largest array of I/O products ranging from IP65 to IP69K. ALTW continuously provides innovative products and solutions for an ever demanding environment with patents covering China, Taiwan, Japan, South Korea, Europe, and North America. Related product brands include: Amphenol, Amphenol Advanced Sensors (formerly GE Sensing), Amphenol Aerospace Operations, Amphenol Anytek, Amphenol ICC, Amphenol Industrial, Amphenol Pcd, Amphenol RF, Amphenol Sine Systems, Amphenol Spectra-Strip, Amphenol SV Microwave.