Utilizes ultrasonic measurement to avoid downhole risks associated with mechanical calipers.

Three ultrasonic sensors arranged circumferentially, equipped with unique drill tool eccentricity correction technology.

16-sector or higher sector division, providing high-precision caliper mapping.

Supports stored or while-drilling measurement modes, with continuous operation time exceeding 300 hours, displaying planar or 3D borehole profiles.

Provides caliper (acoustic travel time) and acoustic amplitude attenuation maps.

Enables comparison of borehole diameter changes between drilling and tripping operations.

1GB or larger storage capacity, with a downhole real-time clock.