SOS Alarm, Vehicle Management – GT25
IP67-rated waterproof 4G+2G multi-function GPS tracker GT25 supports connections to temperature and humidity sensors, fuel consumption sensors, card readers/printers, SOS buttons, buzzers, and other peripherals, making it easy to correct dangerous driving behavior.
Multiple Intelligent Positioning Options
GT25 GPS tracker supports multi-mode positioning, including Beidou satellite positioning, GPS satellite positioning, LBS base station positioning, and Wi-Fi positioning. It also supports A-GPS assisted positioning, making positioning faster and more accurate. It can achieve building-level indoor and outdoor positioning, perfectly recording travel routes, making it easier for users to find their vehicles and saving operators time and effort in maintenance.
Professional Expandability
The standard RS485 serial port gives GT25 GPS terminal greater expandability and customization capabilities, such as connecting to external sensors. Multiple reserved I/O ports allow users to flexibly configure features such as an SOS button, MIC, buzzer, and card reader. Optional Bluetooth 5.1 is also supported, meeting the needs of diverse Bluetooth configuration scenarios.
4G + 2G Network
Support for LTE CAT1 and 2G compatibility makes the product suitable for use in most global regions, including Latin America, Europe, and Southeast Asia.
IP67 Waterproof and Dustproof
GT25 GPS tracking device features an aviation connector and a waterproof, dustproof, and corrosion-resistant design, making it suitable for use in harsh environments.
Technical Specifications
| Specification | GT25 |
|---|---|
| Network | 4G LTE-FDD/TDD (2G Fallback) |
| Working Voltage | DC 9V – 90V |
| Dimensions | 88mm * 38mm * 17mm |
| Location Accuracy | <10 Meters |
| Positioning Way | BDS + GPS + LBS + Wi-Fi |
| Waterproof & Dustproof | IP67 |
| Backup Battery | 450mAh / 3.7V |
| Working Temperature | -20°C to +70°C (-4°F to 158°F) |
| Expansion Interfaces | RS485, Multi-I/O, 1-Wire, MIC |
| Bluetooth | Bluetooth 5.1 (Optional) |
| Protocols | GT06, JT/T808 |
| Weight | 45g |
Main Features
Real-Time Tracking
Remote Cut-Off
IP67 Waterproof
RS485 Port
DC 9-90V
GT25 Vehicle GPS Tracker 4G+2G Applicable Scenarios
Passenger Vehicle Fleet
Commercial Vehicle Fleet
Off-road Mobile Machinery
Bulk GPS Tracking Devices Ready-to-Ship
GREATWILL 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 GT25 offers exceptional quality and value.
- Provide after-sales technical support and product testing
- Continuously adjust products to suit local conditions and vehicles
- Warranty period up to 3 years
- 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.
- Multiple Intelligent Positioning The GT25 supports multi‑constellation and multi‑mode positioning — Beidou, GPS, Wi‑Fi, base‑station (cellular) and AGPS — to deliver precise location across diverse environments. In open outdoor areas it relies on Beidou + GPS for high‑accuracy fixes; indoors or where GNSS is weak it automatically switches to Wi‑Fi or base‑station positioning to maintain continuity. GT25 also provides building‑level indoor/outdoor positioning, enabling precise determination of a target’s location inside or around structures for complex scenarios.
- Strong Expandability GT25 offers a broad set of physical and wireless interfaces for flexible integration: RS‑485, a single‑line communication port, multiple digital/analog I/O, and Bluetooth 5.1 for fast, stable pairing. The device supports connection to external sensors (for example, temperature and humidity sensors) to monitor environmental data in real time. Built‑in safety features include an SOS button that sends an immediate distress alert to pre‑configured contacts or platforms, and TTS (text‑to‑speech) broadcast of location and alarm information for audible notifications.
