An OBD (On-Board Diagnostics) dongle is a small hardware adapter that plugs directly into a vehicle’s standard OBD-II port (usually located under the driver-side dashboard). It bridges the car’s computer (ECU) to an external device—like a smartphone, tablet, or PC—via Bluetooth, Wi-Fi, or USB.
Key Functions & Features
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Diagnostic Trouble Codes (DTCs): Reads and clears check-engine light errors (Powertrain, Chassis, Body, and Network codes).
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Live Sensor Data: Streams real-time engine metrics such as RPM, vehicle speed, coolant temperature, fuel trim, and O2 sensor readings.
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Performance Tracking: Measures metrics like 0–60 mph acceleration times, horsepower, and torque through compatible companion apps.
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Fleet Management & Telematics: Used by insurance companies or commercial fleets to track vehicle location (via GPS), monitor driving habits (harsh braking, rapid acceleration), and log trips .
Please find the detailed product information here:
OBD II Device