




Safety GPS Tracker GT21N | GREAT-WILL
Discover the GT21N, a compact 4G GPS tracking device for fleet management. Features 9-90V wide voltage, driver behavior analysis, and remote fuel cut-off.
Smart Driving Analysis, Enhanced Safety — GT21 Advanced Vehicle Tracker
The GT21 is an advanced 4G Cat-1 vehicle tracking terminal. It integrates GPS/BDS/LBS multi-mode positioning, ACC ignition detection, and remote fuel cut-off. Its core strength is supporting advanced driving behavior analysis, including harsh braking, sudden acceleration, sharp turning, and collision alarms, providing precise data for fleet management and vehicle safety.

Universal Vehicle Compatibility
Supports a 9-90V wide voltage range, ensuring seamless integration across your entire fleet, from motorcycles and cars to heavy-duty trucks.
Advanced Driver Behavior Analysis
Monitor harsh acceleration, braking, and cornering to enhance safety, reduce fuel consumption, and lower maintenance costs for your fleet.


Remote Fuel/Power Cut-off
Secure your assets with the ability to remotely immobilize a vehicle, providing critical control in case of theft or unauthorized use.
Reliable 4G LTE Connectivity
Leverages stable 4G Cat-1 networks for fast, real-time data transmission, ensuring you always have the most up-to-date location and status.

Technical Specifications
Specification | GT21N |
Dimensions | 74(L) * 30(W) * 13(H) mm |
Weight | 30g |
Working Voltage | DC 9V – 90V |
Working Temperature | -20°C to +70°C / -4°F to +158°F |
Backup Battery | 55mAh / 3.7V Industrial Lithium Polymer |
Communication Network | 4G LTE Cat-1 |
LTE Bands | FDD: B1/B3/B5/B8; TDD: B34/B38/B39/B40/B41 |
Positioning System | GPS / BDS |
Positioning Accuracy | < 10 meters (Open Sky) |
Tracking Sensitivity | -165dBm |
Communication Module | AirM2M Air780E |
Standby Current | ≤5mA |
Main Features
Real-time Tracking
Geo Fence
ACC Detection
Blind Spot Storage
DC 9-90V
GT21 Advanced Vehicle Tracker Applicable Scenarios
Vehicle Anti-Theft & Immobilization
Vehicle Anti-Theft & Immobilization
Click HereMotorcycle & E-bike Security
Motorcycle & E-bike Security
Click HereAuto Financing
Auto Financing
Click HereGlobal Multi-Version GT21 for Easy Deployment
We offer advanced vehicle tracking solutions for global clients, supporting OEM/ODM customization. The driving behavior data from the GT21 makes it an ideal choice for insurance companies (UBI), fleet operators, and car rental businesses to effectively reduce risks and improve management efficiency.
After-sales service and Warranty
- Provide after-sales technical support and product testing
- Continuously adjust products to suit local conditions and vehicles
- Warranty period up to 3 years
Delivery Time and Shipping
- Sample delivery time is approximately 3-5 days.
- Large-volume orders take over 7 days.
- The device/platform software/SIM/IoT card undergo engineering inspection and testing before packaging and shipment.
- Multiple shipping methods supported.
4 Reasons to Choose the GT21 Advanced Vehicle Tracker
- Advanced Driving Behavior Analysis: Accurately identifies harsh acceleration, braking, sharp turns, and collisions;
- Wide Voltage Range (9-90V): Compatible with various vehicles like cars, trucks, and motorcycles;
- Remote Control & Multiple Alarms: Supports remote fuel cut-off with power-off, overspeed, and other alarms for asset security;
- Precise Positioning & Compact Design: GPS+BDS+LBS multi-mode positioning in a compact size (74*30*13mm) for easy concealed installation.