Premium DS1990A Metal Ring Key

Crafted from durable stainless steel, this rugged iButton key features a laser-etched serial number for permanent identification. The hermetic密封 design ensures waterproof performance in harsh environments.

Industrial-Grade Reliability

Precision-engineered with Dallas Semiconductor"s patented 1-Wire technology, offering 64-bit ROM registration and -40°C to +85°C operating range. Ideal for access control systems, equipment maintenance tracking, and industrial automation.

Global Wholesale Advantage

Direct factory pricing with bulk order discounts available. Compatible with DS9093A readers and all standard iButton peripherals. Inventory ready for immediate worldwide shipment.

Seamless Integration Solution

Pre-programmed unique identifier eliminates manual data entry errors. Drop-proof construction withstands 50,000+ insertion cycles. Deploys instantly for asset management, time attendance, or vending machine applications.

Certified Authentic Components

100% OEM-grade chips with RoHS compliance. Each unit includes cryptographic authentication for security-sensitive deployments. Custom laser marking available for corporate branding.