The L2+ Silicon Optical Inertial Measurement Unit is a high-performance all-parameter motion inertial sensing product, able to realize real-time detection of both high-precision 3-axis angular velocity and 3-axis acceleration at the same time. It has a room-temperature zero bias stability of ≤0.2°/h for angular velocity with a measurement range of -800~+800°/s and an angular random walk factor of ≤0.02(°)/h¹ᐟ²; its acceleration measurement range is ±30g, with a normal-temperature zero bias stability of ≤0.5mg and a full-temperature zero bias stability of ≤1mg. The product features a bandwidth of ≥400Hz and a start-up time of ≤1 minute, with an operating temperature of -40~+60℃ and a wide voltage power supply of +12~+24V. It measures 70±0.3×65±0.3×51.4±1mm and has a maximum weight of 500g, adopting a standardized electrical interface. With outstanding detection accuracy and comprehensive performance, it can meet the motion parameter detection requirements in harsh scenarios.