Bosch has introduced the next generation of peripheral acceleration sensors for passenger protection systems in vehicles – the fifth since 1996. The key features of the new digital sensors include a wide measurement range of between ±120 g and ±480 g and the choice of communication via the SPI or the PSI5-V1.3 interface. Peripheral sensors are located at the outermost points of a vehicle's engine compartment, at the sides, or at the rear, thus enabling them to recognize a collision quickly. However, the new fifth-generation models can do more than simply register a crash. In just a few milliseconds, they transfer to the airbag control unit all the data needed by the electronics system to determine with absolute certainty whether a collision is minor or serious. The control unit checks the plausibility of the incoming sensor data before deciding which vehicle restraint systems (e.g. front, head or side airbag and seat-belt pretensioners) to activate.