Topcon iM-55 Intelligent Measurement Total Station – 5" Accuracy, Single Display, Optical Plummet (Bluetooth) Sokkia 1023563-01

Sokkia iM-55 5-Second Total Station with BLUETOOTH
Sokkia 1023563-01

Model Number: 1023563-01 | U.S. Version

Built for working professionals who need reliable accuracy and rugged jobsite durability, the Topcon iM-55 (branded under Sokkia) delivers solid performance, long-range EDM capability, and dependable angle precision in a clean, streamlined package. This model provides 5″ accuracy, reflectorless shooting up to 500 m, long prism range, and the stability of an optical plummet.

The 1023563-01 model is the Bluetooth-enabled version, ideal for contractors who want wireless data transfer to their controller for faster workflows and fewer cables on the jobsite.

Designed for dirt, heat, rain, and long days on site, the iM-55 carries an IP66 environmental rating and is backed by Topcon’s global support network. It is built to handle control points, utilities, foundations, and layout work with confidence and consistency.

Sokkia / Topcon iM-55 1023563-01 Key Features

• 30x magnification and red coaxial laser for bright, clear targeting
• Integrated Construction and Survey Application Software
• Fast, accurate, and powerful EDM
• Advanced 5″ angle accuracy for dependable layout and control work
• SDRbasic onboard software for layout, topography, stakeout, and basic geometry
• Single backlit LCD display with alphanumeric keyboard
• Internal storage for up to 50,000 points
• USB memory support up to 32 GB
• Optical plummet for stable and accurate setups
• Up to 14 hours of battery life in Eco Mode
• Reflectorless EDM range up to 500 m
• Prism range up to 4,000 m
• Fast measuring speeds: Fine 0.9 s, Rapid 0.7 s, Tracking 0.3 s
• IP66 dustproof and water-resistant housing
• Supports both cable-based data transfer (USB and RS-232C) and wireless Bluetooth connectivity for faster, cable-free operation with compatible data collectors

Reflectorless Range (Up to 500 m)

The iM-55 measures reflective and non-reflective surfaces accurately without a prism. It performs well on common construction materials including utility poles, interior walls, steel, concrete, and structural components.
Reflectorless range varies based on lighting, surface type, and target color; as with all EDMs, dark or glossy surfaces will shorten the effective range.

Optional Prism Range (Up to 4,000 m)

With a standard survey prism, the iM-55 can measure up to 4,000 m (2.5 miles). This long-range capability is useful for:
• Utility layout and long runs
• Roadway and highway control
• Pipeline layout
• Open land staking
• Construction control points across large sites

A prism strengthens the return signal to the EDM, improving both accuracy and distance.

Topcon / Sokkia iM-55 Total Station – What’s Inside the Box

Included with Model 1023563-01:

• iM-55 Total Station
• BDC466C rechargeable Li-ion battery
• CDC68A battery charger with U.S. power cable
• 1.3 mm precision wrench
• 1.5 mm hex wrench
• 2.5 mm hex wrench
• 2.3 mm precision flathead screwdriver
• Optical-grade lens cleaning brush
• Optical-grade silicone lens cloth
• Moisture-absorbing silica pack
• Anti-glare telescope lens hood
• Laser warning information board
• Heavy-duty padded instrument tool bag
• EMC compliance card
• Manufacturer contact information card
• Quick Start Guide – iM Series
• Digital documentation CD-ROM – iM Series
• English-language Total Station manual
• Warranty registration card (2 years)
• Equipment authorization registration card
• Rugged hard-shell carrying case with custom foam insert

Sokkia / Topcon iM-55 Technical Specs at a Glance

• Angle Accuracy: 5 arc seconds (5″)
• Reflectorless Range: Up to 500 m (1,640 ft)
• Prism Range: Up to 4,000 m (13,123 ft)
• Distance Accuracy:
– Prism: 1.5 mm + 2 ppm
– Reflectorless: 2 mm + 2 ppm
• Telescope: 30x magnification, 45 mm objective lens
• Display: Single-sided LCD, 240 × 160 pixels, backlit
• Memory: 50,000 internal points + USB drive support to 32 GB
• Measuring Times: Fine 0.9 s, Rapid 0.7 s, Tracking 0.3 s
• Battery Life: Up to 14 hours (Eco Mode)
• Operating Temperature: –4°F to +140°F (–20°C to +60°C)
• Environmental Rating: IP66 (dustproof and water-resistant)
• Interfaces: USB 2.0, RS-232C, Bluetooth wireless
• Bluetooth: Yes (wireless connectivity included)

Built for Those Who Build

The Topcon iM-55 Bluetooth model lets crews work the way they prefer: wireless when speed matters, cabled when reliability is priority, all while maintaining the accuracy and rugged jobsite durability the iM Series is known for. For layout crews who want dependable measurement performance with modern connectivity, the 1023563-04 is the ideal configuration.