High-Performance Fiber Optic, Ring Laser Gyro and MEMS Inertial Sensors & Navigation Systems
TAC-440 World’s smallest tactical-grade 1°/hour IMU

World’s smallest tactical-grade 1°/hour IMU

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The TAC-440 MEMS-based Inertial Measurement Unit (IMU) is engineered to deliver unparalleled precision in the most demanding military environments. As the world’s smallest 1°/hour IMU, it serves as a drop in  replacement for Honeywell’s 1930 and 4930 IMUs.

Key Features:

  • Ultra-Compact Design: With a volume of less than 5 cubic inches, the TAC-440 is designed for applications where space and weight are critical factors.
  • Superior Performance: The IMU achieves 1°/hour gyro bias stability and 1 mg accelerometer bias stability, with an exceptionally low angle random walk (ARW) of 0.05°/√hour, ensuring precise navigation and stability over wide temperature ranges.
  • Advanced Technology: Utilizing EMCORE’s proven quartz MEMS inertial sensor technology, the TAC-440 ensures high signal output and thermal stability, supporting repeatable, high-volume production.


Dimensions (H x D) 1.4 x 2.0”
Weight 0.5 lbs
Gyro Bias over Temp 1.0o/hr
Gyro Bias In-Run Stability 0.5o/hr
ARW 0.05°/√hr
Accelerometer Bias over Temp 1.0 mg
Accelerometer Bias In-Run Stability 100 μg
VRW 32 μg/√Hz