G402 4G GPS & BeiDou Fleet Tracking Terminal
G402 4G GPS & BeiDou Fleet Tracking Terminal
Engineered for commercial transport fleets, G402 delivers real-time GPS & BeiDou tracking over 4G LTE with 9–90V wide voltage protection and dead-zone telemetry buffering.
Factory Engineering Parameters
Verified factory specifications for the AlwayCare G402 telematics hardware. Values strictly follow the manufacturer product ledger.
| Hardware Model | AlwayCare G402 (Standard Fleet Package) |
|---|---|
| Operating Voltage | DC 9V ～ 90V (Ultra-wide voltage with transient reverse protection) |
| Positioning Modes | GPS + BeiDou (BDS) Dual-Mode Satellite Navigation |
| Communication Bands | 4G LTE-FDD: B1/B3/B5/B8 | LTE-TDD: B34/B38/B39/B40/B41 |
| Positioning Accuracy | < 5 meters (CEP 95% open sky) |
| TTFF (Time to First Fix) | Cold start: ≤ 32s | Hot start: ≤ 1s |
| Vehicle Status Sensing | ACC ignition/fireout detection, main power failure alert, battery low-voltage alarm, overspeed alert, fuel circuit status |
| Emergency & Discrete I/O | Dedicated external SOS panic button, custom digital high/low level status sensing |
| Telemetry Optimization | Blind spot data buffer (automatic retransmission on signal recovery), inflection point cornering compensation |
| Power Consumption | Active tracking: < 60mA @ 12V | Static deep sleep mode: < 5mA @ 12V |
| Enclosure Dimensions | L86mm × W43mm × H15mm |
| Device Net Weight | Approximately 58g |
| Operating Temperature | -25°C ～ +75°C (Industrial fleet operating grade) |
| Factory Warranty | 15 Months Manufacturer Coverage |
Standard Factory Bill of Materials (BOM)
| 1. Central Telematics Unit | AlwayCare G402 4G GPS/BeiDou Smart Terminal Host × 1 |
|---|---|
| 2. Main Power Harness | 4-Pin automotive-grade power and status cable with inline fuse holder × 1 |
| 3. SOS Panic Cable | Dedicated discrete emergency button with shielded extended wiring × 1 |
| 4. Mounting Fixtures | Industrial-strength double-sided 3M VHB adhesive foam pad × 1 |
| 5. Engineering Documentation | Factory QC inspection certificate and wiring schematic guide × 1 |
4G Fleet Telematics Architecture Matrix
Compare hardware capabilities across the AlwayCare 4G fleet telematics portfolio to select the optimal model for your operational requirements.
| Model | Operating Voltage | Network & Positioning | Status Detection | I/O & Peripherals | Key Fleet Use Case |
|---|---|---|---|---|---|
| G401 Basic Telematics |
DC 9–90V | 4G LTE + GPS/BeiDou | ACC Ignition, Power-Loss Alert, Overspeed | Standard 4-Pin Power Lead | Budget tracking, basic rental monitoring |
| G402 Current Model Fleet Standard |
DC 9–90V | 4G LTE + GPS/BeiDou | ACC Status, Low-Voltage Alert, Overspeed, Fuel Line | SOS Panic Button + Discrete High/Low I/O | Commercial trucking, transit logistics, public fleet safety |
| G403 Serial Expansion |
DC 9–90V | 4G LTE + GPS/BeiDou | ACC Status, Low-Voltage Alert, Overspeed, Fuel Line | RS232 Interface + SOS + Discrete I/O | Fuel level sensors, RFID driver identification |
| G406 Anti-Theft Compact |
DC 9–95V | 4G LTE + GPS/BeiDou | ACC Status, Vibration Alarm, Remote Fuel Cut-off | External 40A Relay + SOS Panic Button | High-theft vehicle recovery, micro-mobility, leasing |
Built for Reliable Vehicle Telematics
Four core engineering capabilities delivering uncompromising data fidelity and dispatch responsiveness.
Dual-Constellation GPS & BeiDou Tracking
High-sensitivity concurrent satellite reception ensures sub-5-meter positional accuracy in urban canyons and challenging terrain.
- Multi-Constellation GNSS: Concurrent acquisition of GPS L1 and BeiDou B1 signals for <2.5m positioning.
- Offline Dead-Zone Buffer: Stores position packets during cellular dropouts and auto-uploads upon reconnection.
- Cornering Smoothing: Inflection point reporting preserves exact vehicle turning trajectories on maps.
Comprehensive Electrical & ACC Telemetry
Direct connection to vehicle electrical circuits provides instant operational diagnostics to prevent battery drain and detect tampering.
- ACC Ignition Monitoring: Distinguishes trip mileage from stationary engine idling for accurate fuel audits.
- Power-Cut Alarm: Instant SMS and platform notification if main vehicle battery power is disconnected.
- Low-Voltage Safeguard: Warns fleet managers before parked vehicle batteries drop below starting threshold.
Dedicated SOS Panic & Discrete Status I/O
Equipped with a physical panic button and configurable input lines for rapid driver distress alerting and telemetry expansion.
- Tactile SOS Dispatch: Emergency cabin button transmits high-priority alarm and coordinates to dispatchers.
- Digital I/O Telematics: Senses door open/closed status or triggers remote fuel-pump shutoff relays.
- Shielded Harness: Automotive-grade wiring prevents false alerts from vehicle electromagnetic noise.
Seamless Cloud Platform & OTA Maintenance
Compatible with industry-standard telematics protocols and cloud software for streamlined fleet deployment.
- Open CMS Protocol: Seamlessly connects with standard fleet platforms (JT/T808, Wialon, GPSWOX).
- Over-The-Air (OTA) Updates: Remote firmware flashing and parameter tuning without physical vehicle access.
- Smart Sleep Mode: Automatically enters ultra-low power standby when vehicle is parked to save battery.
Modular Peripherals & Hardware Options
Tailor the AlwayCare G402 installation to your specialized fleet monitoring and asset security needs.
Fuel & Power Cut-Off Relay
Automotive-grade 12V/24V 40A immobilizer relay enabling dispatchers to safely cut fuel or starter circuits remotely upon unauthorized usage.
Digital Temperature Sensor
Probe harness providing continuous thermal telemetry for refrigerated logistics vans, pharmaceutical cargo, and perishable transport.
Ultrasonic Fuel Level Sensor
Non-invasive external tank sensor detecting fuel volume fluctuations, refuel events, and suspicious drainage without drilling.
Discrete In-Cab Audio Mic
High-sensitivity cabin microphone allowing authorized security operators to perform live acoustic checks during emergency SOS alarms.
High-Gain Combo Antenna
External low-profile puck antenna combining high-gain 4G LTE and GPS/BDS patch elements for reinforced reception on metal-roof vehicles.
OBD-II Pass-Through Cable
Non-destructive plug-and-play wiring harness drawing direct power and ACC signal from the standard diagnostic port in minutes.
Recommended Fleet Applications
Engineered for dependable uptime across diverse commercial vehicle fleets and operating environments.
Urban Delivery Vans
Enables route compliance, accurate stop-time logs, and real-time delivery dispatch for last-mile logistics.
Highway Freight Trucks
9–90V wide voltage protection handles 24V long-haul tractors with automated dead-zone buffering over intercity routes.
Passenger Transit & Buses
SOS emergency notification and precise timetable tracking ensure reliable route adherence and commuter safety.
Corporate & Rental Fleets
Continuous ignition status and remote immobilization support reduce unauthorized usage and expedite stolen vehicle recovery.
Technical Documentation & Downloads
Comprehensive technical specifications and deployment materials for procurement and engineering teams.
Hardware Datasheet
Pinout schematics, electrical ratings, antenna performance, and mechanical dimensions for G402.
Request DatasheetIntegration Manual
Step-by-step wiring instructions for ACC ignition, power harness, and SOS button placement.
Request ManualAPI & Protocol Guide
Complete communication protocol documentation for integrating G402 into proprietary fleet telematics servers.
Request ProtocolCompliance Certificates
Laboratory test reports including CE, RoHS, and automotive environmental compliance certificates.
Request CertificatesTechnical & Deployment FAQ
Direct answers to commercial telematics integration questions. For project assistance, contact our engineering team.
How does the G402 detect vehicle ignition and sleep states?
The G402 features a dedicated ACC detection wire connected to the vehicle ignition switch. When the engine starts, the unit shifts from quiescent sleep mode (<5mA) to active reporting. When the engine turns off, it uploads a final stationary status packet and enters power-saving mode, preventing auxiliary battery drain.
What happens when a vehicle travels through tunnels or areas without cellular coverage?
The G402 incorporates an onboard flash buffer. Positional packets generated in cellular blind spots are automatically stored in memory. Once 4G connectivity is restored, all buffered records are transmitted to the server in chronological order, ensuring complete historical route integrity.
Can the SOS panic button and remote relay operate simultaneously?
Yes. The SOS panic input functions independently as an emergency trigger for driver distress. When optional immobilizer relays are installed, dispatch controllers can issue remote cut-off commands over the cloud platform in response to verified emergency incidents.
Is the 9–90V operating voltage suitable for commercial trucks and electric vehicles?
Absolutely. The wide 9–90V DC input range accommodates standard 12V light commercial vehicles, 24V heavy-duty highway tractors, and high-voltage industrial battery systems (such as 48V/72V electric logistics carts) with integrated surge and reverse polarity protection.
How does AlwayCare support custom firmware and third-party platform integration?
AlwayCare provides complete communication protocol documentation (TCP/UDP) for direct integration into enterprise fleet platforms. Custom firmware behaviors, reporting intervals, and I/O logic can be tailored for high-volume OEM/ODM commercial contracts.
Equip Your Fleet with AlwayCare G402 Telematics
Connect with our commercial fleet engineers for tailored sample evaluations, protocol specifications, and volume pricing.
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Explore Solutions →Configuration & Quotation
Configure the right system around your vehicles.
A quotation should confirm the coverage, compatibility with your existing equipment, installation environment and platform workflow for the selected vehicle-safety system.
- What the installation needs to cover
- Compatibility with your existing equipment
- The conditions in which the system will be installed and used
- How footage, alarm events and fleet data are reviewed day to day