CHCNAV i85 Laser IMU-RTK GNSS Receiver

High-Precision Laser RTK GNSS for Surveying & Construction Professionals

The CHCNAV i85 Laser IMU-RTK GNSS Receiver is a compact, high-performance RTK system designed for professional surveying, construction layout, and engineering applications across Canada. Combining 1408-channel GNSS performance, integrated laser measurement, and AUTO-IMU tilt compensation, the i85 delivers fast, accurate, and reliable positioning — even in obstructed or hard-to-access environments.

Built for demanding field conditions in Canada - Alberta, British Columbia, and Saskatchewan. The i85 is ideal for surveyors working with RTK networks, CORS systems, or base-rover setups.

🔹 Key Features

✔ 1408-Channel GNSS with iStar2.0 Engine

The i85 supports GPS, GLONASS, Galileo, BeiDou, QZSS, and SBAS, ensuring consistent RTK performance even in urban corridors and under partial canopy.

• RTK Accuracy: 8 mm + 1 ppm (H)

• Initialization: <10 seconds

• Reliability: >99.9%

• Supports RTK, PPK, Static, and PPP workflows

Perfect for professional land surveying and construction GNSS applications in Canada.

✔ Integrated Laser Survey – Measure What GNSS Can’t Reach

The built-in industrial-grade green laser enables accurate 3D coordinate capture in obstructed, unsafe, or inaccessible areas.

• 2 cm accuracy at 5 m

• 3 cm accuracy at 10 m

• Ideal for behind fences, across rivers, near buildings

This hybrid GNSS + laser solution increases field productivity by over 50% and improves safety on construction sites.

✔ AUTO-IMU Tilt Compensation (No Calibration Required)

The 200 Hz AUTO-IMU eliminates manual initialization and maintains up to 3 cm accuracy with pole tilt up to 60°.

• Immune to magnetic interference

• Faster topographic surveys

• Reduced field time by up to 30%

Ideal for fast RTK stakeout and topo surveys.

✔ 3D Visual Navigation & AR Stakeout

Dual cameras (8 MP + 2 MP) integrate with LandStar software for visual stakeout and augmented reality navigation.

• CAD AR stakeout

• Virtual Pole Tip™ (VPT™) guidance

• Clear targeting even in complex sites

This makes the i85 a powerful solution for infrastructure projects, utilities, and civil engineering.

✔ Built for Canadian Field Conditions

• IP68 dust and water protection

• Survives 2-meter pole drop

• Operating temperature: -40°C to +65°C

• Reinforced metal chassis

Reliable in harsh Canadian weather — from winter construction in Alberta to summer forestry surveys in BC.

✔ Long Battery Life & Flexible Connectivity

• Up to 20 hours RTK rover operation

• Built-in UHF radio (410–470 MHz)

• Wi-Fi, Bluetooth, USB-C

• NTRIP Client & Caster support

Compatible with RTK CORS networks across Canada.

Why Choose the CHCNAV i85?

The i85 is ideal for surveyors and construction professionals who need:

✔ Compact Laser IMU-RTK GNSS
✔ Reliable RTK performance in obstructed areas
✔ Safe remote measurement capability
✔ Fast tilt compensation without calibration
✔ Flexible base and rover setup

Whether you're performing topographic surveys, construction layout, infrastructure mapping, or engineering measurements, the CHCNAV i85 provides precision, efficiency, and durability in one compact receiver.

🔹 Technical Summary

• Weight: 800 g

• Channels: 1408

• RTK Accuracy: 8 mm + 1 ppm

• Laser Accuracy: 2 cm @ 5 m

• IMU: 200 Hz AUTO-IMU

• Protection: IP68

• Battery: Up to 20 hours

🔹 FAQ

Is the CHCNAV i85 suitable for RTK CORS networks in Canada?
Yes. The i85 supports NTRIP client connections and is compatible with Canadian RTK (VRS) CORS networks.

Can the i85 be used as both base and rover?
Yes. It includes a built-in UHF radio and supports base and rover configurations.

What is the difference between i85 and i93?
The i85 includes integrated laser measurement, while the i93 focuses more on advanced visual photogrammetry workflows.

Is the i85 good for construction layout?
Yes. With AR stakeout and tilt compensation, it significantly improves construction staking efficiency.