In this guide, we’ll walk you through how to quickly set up, activate, subscribe to track within minutes and start using your GPS tracker ZT-28S / ZT-28E for maximum efficiency and peace of mind. What’s in the Box When you receive your UBITracer device, you should find: ✅ ZT-28S / ZT-28E GPS Tracking Device ✅ Charging Cable ✅ Quick Start Guide (QR code included) 🔋 Please charge the device fully (2–3 hours) before first use. Step #1 - Download the UBITracer App Before you k