9106.90.40.00 - Time locks valued over $10 each

This HTS subheading, 9106.90.40.00, encompasses time locks that are valued at over $10 each. These devices are designed to automatically lock or unlock at predetermined times, typically incorporated into secure environments like safes, vaults, or access control systems. Their primary function is to enforce time-based security protocols.

This category is distinct from its sibling, 9106.90.20.00, which specifically classifies parking meters. While both fall under time-recording apparatus, parking meters are dedicated to measuring and collecting payment for parking duration, whereas time locks are focused on automated security access control based on time.

As this is a leaf node, there are no further subcategories. Classification within this subheading is determined by the device's nature as a time lock and its declared value exceeding $10. The inclusion of a clock or watch movement, or a synchronous motor, is inherent to the functionality of these time-based locking mechanisms.