Tracking SIM Card for LMU-4520 Series Truck Locator with GPS Platform + APP Affordable Tracking SIM Card for LMU-4520 Series Truck Locator is the perfect solution for all your tracking needs. This SIM card is compatible with 4G, 3G, and 2G devices, making it versatile and efficient. With compatibility for over 1500 GPS Tracker models, you can stay connected with ease. Compatible with 4G, 3G, and 2G devices Includes TurnKey Mobile App for GPS Tracking Easy setup and activation process