News
2026-10-28
Access control and fire interlock: why fail-safe release belongs on the acceptance checklist
Escape doors must release on fire alarm. How interlocking works, fail-safe versus fail-secure, and three things to test at handover.
2026-10-20
Five reasons ANPR fails on Hong Kong lanes
Backlight, slope, tailgating, plate formats and fill-light placement — datasheet accuracy is not your lane.
2026-10-12
Six questions an owners corporation should ask before face recognition goes live
Necessity, alternatives, storage location, retention, access rights and deletion — before the first face is enrolled.
2026-09-30
Keep or replace the old barrier? Three practical tests
Structure and safety devices, control interface, spare parts availability — the saving may not cover one collision.
2026-09-18
ELV handover: four documents that matter more than the demo
Test reports, port schedules, as-built drawings and label consistency decide whether the system is maintainable in three years.