Trimble GEDO Track Measuring Bar, 1435 mm Gauge, 10 mm Socket Perform precise railway track surveys with this Trimble GEDO Track Measuring Bar , configured for standard 1435 mm track gauge and 10 mm socket prisms. Equipped with one fixed, one tiltable and one moveable prism holder , the bar supports measurement of the track centerline, rail positions and track gauge during precision track surveying workflows. Key Features Designed for standard 1435 mm railway track gauge with prism holders for 10 mm socket prisms. Equipped with one fixed, one tiltable and one moveable prism holder for versatile track measurement configurations. The moveable prism holder follows the actual inner rail edge, allowing the track gauge to be measured directly. Electrically isolated at one end to prevent a short circuit between the two rails during measurement. Compatible With Trimble GEDO prisms with 10 mm socket 1435 mm gauge railway track surveying applications