Leonardo Company's ELSAG SignalTrace Tracks Device Signatures With License Plates

Leonardo Company's ELSAG SignalTrace device captures electronic signatures from phones, smartwatches, and Wi-Fi devices passing by vehicles. It pairs device data with license plate readings to identify movement patterns and link devices to specific vehicles. The system can record a 2016 Mercedes-Benz CLS 400 in Michigan with an iPhone 16 and Apple smartwatch.