2g 3G 4G GPS Tracker Car Alarm Relay Cut off Engine RFID Immobilizer Vehicle GPS (GT08-DI). Compact Waterproof Design: Mini size 62*50*22mm with waterproof design, ideal for motorcycles and cars. Multi-Language SMS Control: Supports English, Portuguese, Spanish, Arabic, and Chinese for easy operation. Remote Engine Cut-Off: Safely stop the car via SMS or GPRS to prevent theft. Real-Time GPS Tracking: Accurate positioning within 10m with 2D/3D auto mode and fast start times. Built-in Backup Battery: Rechargeable 3.7V 300mAh battery sends alerts if main power is cut. Comprehensive Alerts: Features over-speed, geo-fence, movement, and SOS alerts for security. USB Configuration: Set all commands via USB port on computer without sending individual SMS. Dual Certification: Industrial design certified with CE and FCC standards for safety.