SECO 6402-10 62mm Standard Prism Assembly with 5.5 × 7 in Target

The SECO 62 mm Standard Prism Assembly is a dependable total station prism system designed for everyday surveying, construction layout, and control work. It features a copper-coated, canister-type 62 mm prism with a simple but proven locking system and a 5.5 × 7 inch target for clear field visibility.

This standard prism assembly is waterproof, includes an M20 universal mounting thread, and can be mounted in either 0 mm or -30 mm offset positions. With a tilting axis height of 115 mm and a weight of 1.35 lb (0.62 kg), it provides a solid balance of durability, accuracy, and field-ready handling.

Available Models

• Part Number: 6402-10-FOB – Flo Orange with Black Target
• Part Number: 6402-10-YLB – Yellow with Black Target
• Part Number: 6402-10-FLB – Flo Yellow with Black Target

Key Features

• 62 mm copper-coated canister-type prism
• Prism offset: 0 mm or -30 mm
• 5.5 × 7 inch target
• Simple, proven locking system
• Waterproof design
• M20 universal mounting thread
• Tilting axis height: 115 mm
• Weight: 1.35 lb (0.62 kg)
• Available in Flo Orange/Black, Yellow/Black, or Flo Yellow/Black

Built for Everyday Total Station Work

This prism assembly is a strong choice for crews who need a reliable, no-nonsense prism system for daily field use. The 62 mm prism provides consistent reflector performance, while the 5.5 × 7 inch target helps improve sighting during layout and measurement tasks.

Ideal for:

• Construction layout and staking
• Boundary and land surveying
• Control point measurements
• Topographic surveys
• General total station workflows

Flexible 0 mm or -30 mm Offset

The SECO 62 mm Standard Prism Assembly can be mounted in either 0 mm or -30 mm offset positions, allowing crews to match common prism constants used across different total station brands and workflows. This makes it a practical option for mixed equipment fleets or crews switching between instrument setups.

Color Options for Field Visibility

Choose from Flo Orange with Black, Yellow with Black, or Flo Yellow with Black depending on your preferred target visibility. Each version uses the same 62 mm prism, target size, waterproof construction, M20 mounting thread, and 0/-30 mm offset capability.

What’s Included

• 62 mm copper-coated canister-type prism
• Standard prism holder with locking system
• 5.5 × 7 inch target in selected color