The Tronics AXO315, a miniature high performance 1-axis closed-loop MEMS accelerometer from TDK Corporation, has a 24-bit digital SPI interface and SMD package that reaches quartz sensors performances and eases integration. The new force-rebalance accelerometer delivers a one-year composite bias repeatability of 1 mg and composite scale factor repeatability of 600 ppm under severe temperature and vibration conditions common in industrial, land, railway, naval and construction applications. Its characteristics enable significant reduction in size, weight and cost of materials for industrial motion control units, inertial measurement units (IMU)s and inertial navigation systems (INSs). AXO315 is a ±14 g range, in-plane linear accelerometer, developed for high precision and reliability in the most challenging environments. It achieves a 1 mg composite bias repeatability over one year at temperatures ranging from -55 °C to +105 °C, and 4 g vibrations with an outstanding vibration rejection.