BLIP Systems — BlipTrack (Bluetooth/Wi-Fi MAC sensors) — vendor profile

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Danish vendor whose sensors record the Wi-Fi/Bluetooth MAC address of passing devices, then encrypt and time-stamp them to measure travel and dwell times. Documented at Schiphol, JFK, Dublin, Copenhagen and Brussels airports and on road networks in Stockholm and Auckland. Marketed as anonymized traffic analytics, not identity tracking. National shared plate database: NO — the vendor states MAC IDs are hashed for aggregate traffic-flow analytics.