High-Density 64-Bit Read-Only Memory Card
Precision-engineered DS1990/TM1990 iButton key with durable stainless steel casing for extreme environments. Ideal for access control, industrial automation, and secure data logging.
Military-Grade Stainless Steel Construction
Corrosion-resistant shell withstands harsh conditions (water, dust, UV). Hermetically sealed for IP68 waterproof performance.
Plug-and-Play Compatibility
Seamless integration with 1-Wire protocol devices. Works with Dallas/Maxim readers, Arduino, and Raspberry Pi projects.
Laser-Engraved Unique ID
Permanent factory-programmed 64-bit ROM code ensures absolute traceability. No power supply required for operation.
Bulk Pricing Advantage
Direct-from-factory wholesale rates for industrial buyers. Global shipping with 10,000+ units ready for immediate dispatch.
Multi-Industry Applications
Perfect for HVAC systems, medical equipment authentication, cryptocurrency hardware wallets, and smart locker systems.