The NEO-M8L standalone module combines the high performance u‑blox M8 concurrent positioning engine with u‑blox’ 3D Automotive Dead Reckoning (ADR) technology, thus providing 100 % coverage and continuous 3D positioning for road vehicle applications. The NEO-M8L module provides high sensitivity, fast GNSS signal acquisition and tracking with low system integration effort. The module’s on-board 3D accelerometer, 3D gyroscope sensors, and speed-pulse input (hardware or message-bus) deliver a complete solution for road vehicle ADR applications. u‑blox’ ADR and GNSS technologies deliver continuous, accurate positioning throughout the journey. Built-in dead reckoning sensors in conjunction with speed information from the vehicle provide navigation both before GNSS signals are acquired and during periods of signal loss. In difficult urban signal conditions u‑blox’ tightly-coupled navigation solution makes use of sensor data to deliver significant improvements in navigation accuracy during periods of unavailable or degraded GNSS signals. With the introduction of 3D sensing and signal processing (for both acceleration and direction), the navigation range already improved by dead reckoning in tunnels and urban canyons extends to accurate navigation in multi-level highways and car-parks. 3D sensing also enables flexibility in orientation of the receiver with respect to the vehicle frame. In addition, native sensor data is made available to the application and can be reused for vehicle specific applications such as driving behaviour analysis or accident reconstruction. NEO-M8L is therefore the perfect after-market dead reckoning product. The DDC (I2C compliant) interface provides connectivity and enables synergies and simple integration with most u‑blox cellular modules. u‑blox M8 modules use GNSS chips qualified according to AEC‑Q100 and are manufactured in ISO/TS 16949 certified sites. Qualification tests are performed as stipulated in the ISO16750 standard: “Road vehicles – Environmental conditions and testing for electrical and electronic equipment”.