DS1990 Electronic Key Touch Memory iButton TM Card
High-performance DS1990 iButton with durable stainless steel casing for extreme environments. Touch-and-go data transfer ensures quick, reliable access in harsh conditions. Precision-engineered with a unique 64-bit ROM code for secure identification. Ideal for industrial access control, asset tracking, and automated data logging. Waterproof and shock-resistant design withstands heavy use. Compatible with standard iButton readers for seamless integration into existing systems. Buy in bulk for global wholesale pricing—lowest online rates guaranteed. Trusted by industries worldwide for rugged, dependable solutions.