THINRAD TAL4 Optical Automatic Level

The THINRAD TAL4 is a lightweight automatic optical level designed for routine engineering and elevation measurement. It belongs to the TAL series of automatic levels and provides a practical balance between optical performance, portability and ease of operation.

With its 32× telescope and compact design, TAL4 is well suited to construction crews and surveyors who frequently move equipment between different measurement points.

Key Features

• 32× optical telescope for general leveling

• Lightweight design at approximately 1.55kg

• 1.5mm standard deviation for 1km double-run leveling

• 40mm objective aperture

• Automatic compensator for efficient field setup

• 0.6m minimum focusing distance

• Suitable for routine road, pipeline and construction surveying

Lightweight Solution for Everyday Engineering

The TAL4 is intended for applications where the instrument needs to be practical and easy to transport between work areas. Its compact body and moderate weight make it convenient for repeated setup and relocation on construction sites.

Rather than targeting high-precision leveling, TAL4 provides a straightforward optical solution for routine elevation transfer, construction checks and engineering surveying. It can be used with conventional leveling staffs and accessories without requiring electronic data collection.

Core Specifications

• Model: TAL4

• Magnification: 32×

• Objective aperture: 40mm

• Standard deviation of 1km double-run leveling: 1.5mm

• Compensator working range: ±10′

• Compensator setting accuracy: approximately ±0.5″

• Minimum focusing distance: 0.6m

• Stadia multiplication constant: 100

• Horizontal circle graduation: 1°/1 gon

• Net weight: approximately 1.55kg

• Protection: Not specified in current official TAL4 data

Applications

• Construction site leveling

• Road engineering

• Pipeline surveying

• General elevation measurement

• Engineering surveying

• Site preparation

• Routine topographic surveying