GPS Tracker With Fuel Cut-Off Function

This hardwired telematics device continuously streams precise location, speed, and ignition status while executing remote fuel or ignition interruption commands via server protocols. Built on industrial-grade circuit boards with wide voltage inputs and transient voltage suppression, the unit ensures stable operation under harsh automotive electrical environments without causing electronic control unit interference or battery drain.

Relay Interface Architecture: Solid-state output wired to external 5-pin automotive relays controlling fuel pump circuits or ignition primary power feeds.

Command Execution: Server-to-device execution via encrypted TCP or MQTT packets with instantaneous acknowledgment feedback reporting relay state changes.

Speed Interlock Protection: Firmware automatically blocks cut-off execution when vehicle speed exceeds 20 km/h to prevent steering lock or loss of brake vacuum assistance.

Progressive Deceleration: Optional pulsing control mode that cuts fuel intermittently to slow the vehicle safely rather than executing an abrupt engine stop.

Power Harness Definition:

Red Wire: Main power input (Positive, connected to permanent 12V/24V source with inline fuse protection).

Black Wire: Ground (Negative, secured directly to vehicle chassis unpainted metal).

Orange Wire: Ignition detection input (ACC/IGN, connected to ignition switch output).

Yellow/White Wires: Relay control output (Connected to external automotive switching relay).

Installation Guidelines: Mount units horizontally facing upward beneath dashboard panels, maintaining physical separation from direct engine heat sources and structural steel blocks. Always incorporate flyback diodes on inductive relay coils.

Automotive Systems: Fully compatible with 12V passenger cars, light commercial vehicles, and 24V heavy-duty trucks, buses, and construction machinery.

Ignition Systems: Supports traditional keyed ignition, push-button start systems, and electronic fuel injection (EFI) engines.

CAN Bus Integration: Interfaces with vehicle sub-systems via digital inputs or optional external adapters for reading status without wire splicing.

Cranking Voltage Tolerance: Maintains stable operation during engine cranking voltage drops down to 6VDC.

Thermal Management: Integrated thermal cutoff protection temporarily halts cellular transmission stages if internal ambient temperature exceeds +85°C.

Transient Suppression: Internal circuitry withstands alternator load dump spikes up to 80V without component degradation.

Firmware & Protocol Adaptation: Custom binary or JSON communication protocol integration for direct mapping to proprietary cloud tracking platforms.

Hardware Modifications: Optional backup battery capacities ranging from 150mAh up to 1000mAh, plus internal microphone ports or RS485 interfaces.

Branding Services: Laser-engraved casing labels with custom corporate logos, IMEI numbers, barcode serialization, and customized retail box packaging.

Individual Unit Packaging: Anti-static electrostatic bag encased in a rigid 350g kraft paper box (Dimensions: 130 mm x 90 mm x 45 mm; Gross Weight: 180g).

Master Carton Specification: 50 units per corrugated master carton (Dimensions: 480 mm x 320 mm x 260 mm; Gross Weight: 9.8 kg).

Shipping Compliance: Fully certified for international lithium battery transport under UN38.3 standards for air and ocean freight.

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