Provide patrol staff button to identify employee names

The memory chip is encapsulated by engineering plastic, which is waterproof and shock-proof, easy to carry and durable, and has a built-in code that cannot be modified. The card serial number is unique. Used to identify staff names
After-sales service management
Our company guarantees that all products shipped from the factory are produced and inspected in accordance with relevant national standards, and unqualified products will never leave the factory. Our comprehensive quality management goes deep into every aspect of after-sales service to ensure that after-sales service is of excellent quality.
Quality Warranty Fees
During the one-year warranty period of the system hardware, except for products that are damaged by human factors, free maintenance will be provided during the warranty period. During the maintenance process, components of the products sent for repair will be replaced at cost prices.
During the warranty period of the system software, free upgrades are provided to correct system defects. If the system software needs to be modified or upgraded after the warranty period, the two parties will re-draw a software secondary development agreement, and the new agreement will prevail at that time.