Ibutton checkpoint tags for guard tour system
VS1990A is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return.
Every VS1990A guaranteed unique 64-bit registration number that allows for absolute trace ability. The durable stainless-steel iButton package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the VS1990A to be used easily by human operators.
iButton Specification | |
Material | Memory chips stored inside the button-shaped, water-proof and stainless steel case. |
Dimension | 16.3mm*5.6mm |
Weight | 1.6g |
Storage Temperature | -30°C - +80°C |
Data Storage | Unique ID serial number (read only) |
Hot Tags: Gurad Tour Ibutton Checkpoint Tag, China, manufacturers, suppliers, customized, wholesale, OEM, ODM, developer