A lock is mechanical and electronic at once, and the two fail in different ways. These are the gates every unit passes before it is packed.
Gate 1 — Incoming components
Semiconductor sensors, face modules, cells, mortise bodies and cylinders are sampled before assembly: sensor response on a reference finger, cell voltage and internal resistance, body dimensions against the 6068 / 3085 drawing, cylinder grade against the C-class certificate.
Gate 2 — 72-hour powered ageing
Every unit is powered and exercised for 72 hours: repeated lock/unlock cycles, Wi-Fi reconnection storms, low-voltage simulation down to the alarm threshold, tamper-trigger test. This is the gate that catches the panel that works cold and dies at 55 °C.
Gate 3 — 300,000-cycle bench
A sample from each lot runs to 300,000 operations with torque and current logged. A motorised lock that loses 20 % of its drive torque by cycle 180,000 is a warranty claim in year two.
Gate 4 — Environment
Salt spray beyond 120 hours (200 hours on F32M1), ESD at 8 kV contact and 15 kV air, humidity soak at the top of the published range.
Gate 5 — 100 % functional audit
Every single unit is opened, closed and unlocked by each enabled method against a printed checklist that travels with the carton. The report pack ships with the order.