iButton GPS Tracker GT903K | GreatWill
The Great Will GT903K features a highly integrated design with a built-in antenna, balancing easy installation with stable performance. Its wide 9-90V voltage range accommodates a variety of scenarios. Its powerful combination of GPS, Beidou, and LBS positioning ensures accurate real-time tracking and clear historical tracking playback. It also features a built-in "safety net" that instantly alerts users to vibration, speeding, and entering or exiting electronic fences. A built-in backup battery provides immediate warning of unauthorized device removal. Even remote power and oil cutoffs via relays are easily activated, providing comprehensive asset security.
- Remote Power and Oil Cut-off
- 4G+2G Full Network Access
- GPS+Beidou+LBS Multiple Positioning
- Real-Time Location Tracking
iButton Accessory, RFID Driver Identification – GT903K
The GT903K is a 4G wired GPS tracker equipped with RFID to identify authorized drivers, effectively protecting your vehicle from theft.
Wide Voltage Compatibility
With a wide voltage input range of 9-90V DC, it can adapt to the power systems of various equipment, including automobiles, logistics trucks, and construction machinery. This eliminates the need for additional voltage converters.
Multi-Dimensional Alarm System
Vibration Alarm: Adjustable Sensitivity: Triggers with text messages and phone calls and is linked to sound and light alarms for theft prevention.
Overspeed Alarm: Supports multiple speed limits and provides two-way notifications when triggered. Records and generates reports.
Electronic Fence Alarm: It has customizable fence and control modes and sends text messages and enforces speed limits when boundaries are crossed.
Built-in Backup Battery
A replaceable lithium battery serves as a backup power source and automatically switches to extended battery life when the main power supply is interrupted. When combined with an intelligent power-saving design, the standby current is as low as 30 mA, enabling 18 to 24 hours of continuous operation on a single charge. In standby mode with GPS disabled, the battery life lasts up to 72 hours. The backup battery ensures continuous positioning and alarm functionality during power outages and provides an early warning through a low-battery alarm to prevent monitoring interruptions caused by power failures.
Relay Expansion Connection
The GT903K supports external relay connections for automated control. Using its "weak current controlling high current" feature, it allows for device linkage and remote control.
Technical Specifications
| Specification | GT903K |
| Network Bands | LTE-FDD/GSM |
| Working Voltage | DC 9V - 90V |
| Dimensions | 78mm * 34mm * 16mm |
| Location Accuracy | <10 Meters |
| Positioning Way | GPS + BDS + GLONASS + LBS |
| Standby Current | ≤5mA |
| Standby Battery | 300mAh / 3.7V |
| Working Temperature | -20°C to +60°C (-4°F to 140°F) |
| Storage Temperature | -40°C to +70°C (-40°F to 158°F) |
| G-sensor | Built-in 3-axis accelerometer |
| Data Buffering | Supported (Up to 4000 entries) |
| Protocol | GT06 Protocol |
Main Features
Real-time Tracking
Remote Cut-Off
RFID Identification
Multiple Alarms
DC 9-90V
GT903K iButton GPS Tracker 4G+2G Applicable Scenarios
Cargo Tracking Scenarios
Cargo Tracking Scenarios
Click HereLogistics Freight Vehicle Tracking
Logistics Freight Vehicle Tracking
Click HereRental Vehicle Management
Rental Vehicle Management
Click HereBulk GPS Tracking Devices Ready-to-Ship
GREAT-WILL specializes in GPS tracker wholesale. We maintain a regular stock of market-proven devices to quickly fulfill orders for vehicle trackers, asset trackers, and heavy equipment monitors. We support OEM/ODM and customization services. Whether for your own business or for resale, the GT903K offers exceptional quality and value.
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.
What are the advantages of the GT903K GPS tracker?
- Dual-Purpose Positioning and Identity Verification: Integrated with the iButton RFID, it overcomes the limitations of single-positioning technology by linking positioning and identity verification. It accurately captures location while automatically verifying the identity of the subject (driver, cargo, or asset), which eliminates the blind spot of "positioning without identity" management.
- Wide Voltage + Multi-Environment Compatibility: A wide voltage range of 9–90 V allows direct compatibility with 12 V/24 V vehicles and industrial equipment, eliminating the need for additional converters. A built-in backup battery provides up to 72 hours of standby time, ensuring positioning even during power outages and power-off scenarios. Its environmental durability makes it suitable for complex environments such as construction sites and airports.
- Alarm + Linkage Dual Protection: Multi-dimensional alarms (vibration, speeding, and electronic fencing) are linked with relays to form a closed loop of "warning-response-control." Alarms trigger push notifications and automatically initiate control measures, such as fuel cut-off and audible and visual warnings, eliminating the "alarm-only, no-intervention" situation.
- Automation and traceability: RFID enables rapid identification, eliminating manual scanning and registration and improving the efficiency of inventory and permission verification. Positioning and RFID data automatically synchronize with the platform, generating tracking, alarm, and transfer records. This supports traceability audits, reduces costs, and improves efficiency.
