ACD CENTER / Prisoner Tracker Secure monitoring A wearable tracking project with a removal-resistant strap, Bluetooth connectivity and integrated heart rate sensing. DEVELOPMENT SCOPE - Industrial and mechanical design - Removal-resistant strap design - Drop and thermal simulations - Electrical design - Antenna design and performance simulations - CE certification work - Firmware design and heart rate monitoring algorithm - Parts sourcing in Asia and assembly in Texas PRODUCT CAPABILITIES - Bluetooth messages to the cloud - RSSI-based geofencing - Dual primary cell batteries - IP67 rating - Heart rate monitor - Three-axis accelerometer - Nordic nRF52833 chipset and Valencell HRM SOURCE ACD Brochure 2025, slide 38 Project scope and capabilities reproduced from ACD Brochure 2025, slide 38. Images are from the supplied company portfolio. CONTACT sales@austincircuit.com +1 972-853-1912