Product SKU: TSS-DL3-BG-v3.1

Position and orientation, indoors and out. One device, no infrastructure.

The Yost Labs 3-Space™ Data Logger Nav combines a miniature, high-precision AHRS/IMU with onboard GPS, micro-SD storage, Bluetooth Low Energy (BLE) connectivity, and a rechargeable lithium-polymer battery in a single end-use-ready unit. No external logger, no tethered power, no cables if your application doesn’t want them. Attach it and start capturing position, orientation, and motion, wherever the work takes it.

Positioning that doesn’t stop at the door

GPS covers the open sky. Our EEPTS pedestrian tracking engine, developed through defense-funded R&D and standard on every Data Logger, covers everywhere GPS can’t: indoors, underground, and in dense urban environments. Together they deliver continuous positional tracking across environments that defeat GPS-only solutions, covers everywhere GPS can’t: indoors, underground, and in dense urban environments, with floor-level altitude changes tracked via the onboard barometer. Configure them to work together for continuous positional tracking across environments that defeat GPS-only solutions, or run each independently as your application demands. Our proprietary capability, built in here.

Precision engineered for real-world conditions

A full 10 degrees of freedom: triaxial gyroscope, accelerometer, and magnetometer data are fused through Yost Labs’ quaternion-based orientation filtering, while an onboard barometer adds altitude and vertical motion sensing. A dynamic sensor confidence algorithm maintains accuracy across changing operating conditions, and gradient descent calibration with high update rates compensates for sensor error. Orientation is returned in absolute terms or relative to any reference orientation you designate.

Wireless where it matters

BLE streams sensor data to your host without a cable in the way, ideal for wearable applications, field research, and any deployment where a tether is impractical. Log to the onboard micro-SD, stream over BLE, or do both.

Plug in and go

Connected to a USB 2.0 host, the Data Logger Nav enumerates as both a virtual COM port and a USB mass-storage device simultaneously. The COM port provides real-time sensor data, configuration, and diagnostics. The mass-storage device gives you direct access to captured data and logging options, no special software required.

Output in your application’s language

Raw sensor data, normalized data, or filtered absolute and relative orientation in quaternion, Euler angles (pitch/roll/yaw), rotation matrix, axis angle, and two-vector formats. GPS position data logs alongside your inertial data, one timeline, one device.