XCB dual-radio devices as finders, locators, scanners, sensors, and radio topology reporters for pet location management services. Finding, tracking, scanning, locating and proximity monitoring are provided as complementary services supplemented by a Bluetooth Proximity Locator Services Toolkit and a Cellular Remote Locator Services Toolkit. The radiotag devices may also include a user interface with exterior “homing” switch accessible to a user. The switch may activate an “on demand” location fix and communication package useful in pet location services and recovery. For example, smart systems enable alerts, messaging, maps and mixed media support as community services for pet location and tracking.