DS1990A TM1990A RW1990 iButton Touch Memory Key Card
High-strength stainless steel casing ensures extreme durability for harsh environments. Precision-engineered contact surfaces guarantee reliable data transmission with minimal wear. Waterproof and shockproof design withstands industrial conditions, outdoor use, and heavy-duty applications. Ideal for access control, asset tracking, and secure data storage. Unique serialized identification provides tamper-proof security for authentication systems. Compatible with most iButton readers for seamless integration. Bulk pricing available for large-scale deployments. Global shipping with wholesale discounts on volume orders. Industry-leading durability meets unbeatable value.