The Topcon AT-B4 Automatic Level is a precision optical levelling instrument designed for everyday construction and surveying tasks. Engineered for reliability and ease of use, the AT-B4 provides fast, accurate horizontal and vertical measurements on site. Its solid, ergonomic design ensures stability during use, while the automatic compensator delivers dependable levelling results even on uneven ground.

Ideal for builders, engineers and survey professionals, the AT-B4 features a bright, easy-to-read circular level and a well-balanced optical system that improves sighting accuracy and reduces fatigue. Built to withstand demanding environments, this automatic level combines rugged construction with precision performance, making it suitable for a wide range of site levelling applications.

• Automatic levelling for fast, accurate measurements
• Robust and ergonomic design for reliable field performance
• High-precision optics for clear, sharp target sighting
• Bright, easy-to-read circular level
• Stable compensator for dependable results on uneven surfaces
• Lightweight yet durable construction

• General construction levelling
• Site layout and grade checks
• Foundation and floor levelling
• Roadwork and infrastructure projects
• Drainage and landscaping levelling