StellaX GNSS Chip
A new full-frequency, anti-interference engine that lifts overall accuracy about 15% and reports 96% fix reliability with 20% better data quality — even under heavy solar activity.
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CHCNAV | SKU:
CHCNAV i85 Laser IMU-RTK GNSS Receiver
Regular price
$10,500.00
Unit price
CHCNAV i85 Laser IMU-RTK GNSS Receiver for Surveying and Construction
The CHCNAV i85 is a compact, high-performance Laser IMU RTK GNSS receiver designed for professional land surveying, construction layout, engineering surveys, utility mapping, and GNSS stakeout. Combining 1892-channel GNSS technology, integrated green laser measurement, 200 Hz AUTO-IMU tilt compensation, dual-camera visual navigation, and new PointSky satellite corrections, the i85 delivers fast, reliable centimeter-level positioning even in obstructed environments.
Built for demanding field conditions across Canada — including Alberta, British Columbia and Saskatchewan — the i85 supports RTK networks, NTRIP CORS, PPP, PPK, PointSky corrections, and base-rover workflows, making it a highly flexible GNSS solution for survey professionals.
Key Features
-
1892-Channel GNSS Engine with iStar Technology
Supports GPS, GLONASS, Galileo, BeiDou, QZSS and SBAS for dependable RTK performance.
RTK accuracy: 8 mm + 1 ppm horizontal
Initialization: <10 seconds
Reliability: >99.9% -
Integrated Laser Survey
Capture inaccessible points safely using the built-in visible green laser.
2 cm accuracy at 5 m
3 cm accuracy at 10 m -
200 Hz AUTO-IMU Tilt Compensation
Calibration-free tilt measurement up to 60° with magnetic interference immunity and up to 3 cm tilt accuracy. -
Dual-Camera Visual Stakeout and AR Navigation
Includes 8 MP + 2 MP cameras, smart autofocus, CAD AR stakeout and VPTâ„¢ virtual pole tip guidance. -
PointSky Satellite Corrections
Untethered centimeter-level positioning without a local base station or NTRIP in supported coverage regions. -
DistLink UHF and Dual-Link Communications
Long-range base-rover radio communications with built-in UHF plus internet + L-band correction support.
Built for Canadian Field Conditions
- IP68 water and dust protection
- 2-meter pole drop resistance
- Operating temperature: -40°C to +65°C
- Metal reinforced housing
- Up to 20 hours rover battery life
Applications
- Topographic land surveying
- Construction stakeout and layout
- Utility and as-built mapping
- Cadastral and boundary surveys
- Mining and earthworks surveys
- Forestry and remote-access surveys
Technical Specifications
- Channels: 1892
- Weight: 800 g
- RTK Accuracy: 8 mm + 1 ppm
- Laser Accuracy: 2 cm @ 5 m
- IMU: 200 Hz AUTO-IMU
- Positioning Rate: Up to 10 Hz
- Protection: IP68
- Battery: Up to 20 hours
Why Choose CHCNAV i85?
The i85 combines GNSS, laser survey, visual stakeout, tilt compensation, PointSky corrections and UHF base-rover capability in one compact receiver. It helps survey crews reduce setup time, work safely in inaccessible locations, and improve productivity across topographic, engineering and construction projects.
Frequently Asked Questions
Can the CHCNAV i85 work with RTK CORS networks in Canada?
Yes. It supports NTRIP client connections and works with Canadian RTK and VRS correction networks.
Can the i85 be used as both base and rover?
Yes. The receiver includes integrated UHF radio and supports base-rover configurations.
What is PointSky on the i85?
PointSky provides real-time satellite-delivered centimeter positioning without needing a local base station in supported regions.
What is the difference between i85 and i93?
The i85 focuses on laser surveying and compact field efficiency, while the i93 emphasizes advanced visual photogrammetry workflows.
Is the i85 suitable for construction stakeout?
Yes. AR visual stakeout, laser survey, and tilt compensation make it highly effective for construction layout.
Technical Specifications & Features
CHCNAV i85 Compact Laser GNSS Receiver
Click to enlarge
Pocket Laser IMU-RTK GNSS Receiver
CHCNAV i85 – extreme GNSS performance, laser power on top
The CHCNAV i85 is a full laser IMU-RTK rover built to measure the points you can’t safely stand on. A 1,892-channel GNSS engine on the new StellaX chip, a sunlight-visible green laser, dual cameras and a 200 Hz AUTO-IMU — all in one 800 g body.
Aim the green laser and the i85 captures a survey-grade 3D coordinate from up to 150 m away. Hold the pole two-handed for shake-free shots — the software fires the moment it recognises a stable aim.
And with one year of PointSky included, you can work to centimeter accuracy with no base station and no NTRIP at all.
StellaX GNSS • Green Laser Survey • PointSky Corrections
Reach the points a normal rover can’t
Bridges, fences, transformers, riverbanks, manhole lids — the points that slow crews down or put them at risk. The i85 combines GNSS with a high-precision green laser so you measure them from a safe distance, at RTK-level accuracy, in seconds.
RTK Accuracy
8 mm + 1 ppm
Laser Range
150 m*
Battery
20 h
Channels
1,892
Why It Stands Out
Built around the points you can’t reach
Traditional GNSS falls short in the same three places: signal-blocked sites kill the fix, hard-to-reach points cost setup time, and hazardous points force risky access. The i85 was built to solve all three with one tool.
- Green laser captures obstructed and hard-to-reach points from a distance
- Measure hazardous points safely — no climbing fences or stepping into traffic
- StellaX chip holds a fix where signal is partially blocked
- Automatic laser measurement fires on a stable aim — no shaky one-handed shots
Key advantages
The i85 delivers practical field benefits for land surveyors, construction crews, and utility teams working in real, complex environments.
Green Laser Survey
A sunlight-visible green laser (resistant to ambient light ≥50,000 lux) captures survey-grade 3D coordinates to 2 cm at 5 m and 3 cm at 10 m, with reach up to 150 m.
Next-Gen IMU
Heading accuracy improved fivefold at 200 Hz, calibration-free and magnetic-immune — the precision that lets the laser meet its accuracy spec at distance and tilt up to 60°.
True 8 MP Dual Camera
An industry-first true 8 MP camera with 4× autofocus keeps distant targets sharp and distortion-free, while the second camera drives AR visual stakeout.
PointSky Corrections
One year included. Satellite-delivered corrections reach 2.5 cm horizontal in 3–5 minutes — no local base station and no NTRIP — even in weak- or no-network areas.
Built for the Field
800 g, IP68, survives a 2 m pole-drop, runs −40°C to +65°C, and lasts up to 20 h as a rover — with a rigid all-metal chassis keeping laser and cameras aligned.
StellaX GNSS Engine
Holds a fix where lesser receivers give up
Open-sky accuracy is easy — the real test is staying fixed when half the sky is gone. The StellaX chip on the iStar engine tracks all constellations across the full frequency range and rejects ionospheric noise, reporting 96% fix reliability and 20% better data quality than the previous platform.
It also supports both PPP-AR and PPP-RTK — useful where a correction stream is thin or you’re working between networks.
- All-constellation tracking on 1,892 channels
- ~15% accuracy gain from the StellaX chip
- 96% fix reliability under solar activity
- PPP-AR and PPP-RTK supported
Green Laser Survey
Measure hazardous points safely — without reaching them
Signal-blocked, fenced-off and dangerous points are where crews lose time and take risks. The i85’s green laser shoots 3D coordinates across roads, fences, facades, transformers, manholes and unstable walls while you stay on safe ground — at RTK-level accuracy.
The beam stays visible in bright sun, and automatic laser measurement captures the point the instant the receiver recognises a stable aim — so you grip the pole two-handed for shake-free results.
- Sunlight-visible green laser, resistant to ambient light ≥50,000 lux
- 2 cm at 5 m, 3 cm at 10 m; range up to 150 m in ideal conditions
- Auto-capture on a stable aim — no fumbling for a “collect” button
- Two-handed pole holding for steady, repeatable shots
Visual-Assisted Aiming + Next-Gen IMU
Aim better, measure more accurately
A breakthrough IMU improves heading accuracy fivefold — which is what lets the laser meet 3 cm at 10 m and 2 cm at 5 m. On top of that, a true 8 MP camera with 4× autofocus zoom keeps distant targets sharp without manual fiddling, so you place the crosshair with confidence.
Combined with AR visual navigation, the i85 cuts operator workload by up to 50% and helps less-experienced crew get the same result.
- Heading accuracy improved 5× for reliable laser shots
- True 8 MP camera, 4× autofocus — no blurry aiming at range
- AR visual navigation reduces operator effort up to 50%
- Calibration-free 200 Hz IMU, tilt to 60°
Rugged, All-Metal Build
One unit, built to stay aligned for life
The i85 packs the laser detector, dual cameras, IMU and GNSS into a single rigid metal chassis. That matters: a high-strength alloy bracket keeps the laser and sensors precisely aligned over years of fieldwork, where plastic mounts deform and drift, quietly costing you laser accuracy.
800 g, IP68 against dust and water, survives a 2 m pole-drop, and runs −40°C to +65°C — so it holds up through Canadian winters and demanding sites.
Built for real survey work
From topo to mining, the i85 covers professional positioning. With NTRIP support and access to our own RTK correction network, you’re fixed within minutes of leaving the truck across our Alberta coverage — and PointSky removes the base entirely on most jobs.
Topographic & Detail
Fast topo and feature pickup, including obstructed and hard-to-reach points captured by laser instead of walking the pole in.
Utility & As-Built Mapping
Asset locating and as-built verification, with safe laser shots to manholes, poles, transformers, and facades.
Mining & Earthworks
Stockpile and surface work where points sit on unstable ground or steep faces you shouldn’t stand on.
Forestry & Remote Access
PointSky keeps you fixed in weak- or no-network areas, with the laser reaching points across water, brush, and terrain.
CHCNAV i85 technical specifications
| GNSS channels | 1,892 channels |
|---|---|
| Constellations | GPS, GLONASS, Galileo, BeiDou (incl. B1C/B2a/B2b), QZSS, NavIC/IRNSS, SBAS (EGNOS L1/L5); PPP B2b-PPP, E6B-HAS; L-band CHCNAV PointSky |
| RTK accuracy | H: 8 mm + 1 ppm RMS · V: 15 mm + 1 ppm RMS · Init < 10 s · Reliability > 99.9% |
| PPK accuracy | H: 3 mm + 1 ppm RMS · V: 5 mm + 1 ppm RMS |
| Static (high-precision) | H: 2.5 mm + 0.1 ppm RMS · V: 3.5 mm + 0.4 ppm RMS |
| PointSky | H: 2.5 cm (CEP95) · V: 5 cm RMS · < 5 min (selected regions < 1 min) · re-convergence < 1 min · 1 year included |
| Laser survey | High-accuracy: 2 cm @ 5 m, 3 cm @ 10 m · Rapid: 3 cm @ 5 m, 5 cm @ 10 m · range up to 150 m* |
| Laser class | Class 3R green · resistant to ambient light ≥ 50,000 lux |
| IMU | 200 Hz AUTO-IMU · calibration-free · tilt 0–60° · magnetic-immune · tilt uncertainty typ. < 8 mm + 0.3 mm/° to 30° |
| Positioning rate | 1 Hz, 5 Hz, 10 Hz |
| Time to first fix | Cold start < 45 s · Hot start < 10 s · Re-acquisition < 1 s |
| Cameras | Dual global-shutter, 2 MP & true 8 MP · 4× autofocus · 91° FOV · 30 fps |
| UHF radio | Internal Tx/Rx 410–470 MHz · 0.5 W / 1 W · DistLink, CHC, TT450, Satel, Transparent · typ. 6 km, up to 15 km with DistLink |
| Communication | NFC pairing · Bluetooth 4.2 · Wi-Fi 802.11 b/g/n/ac, 5.8 GHz & 2.4 GHz |
| Data formats | RTCM 2.x / 3.x, CMR I/O · HCN, RINEX 2.11 / 3.02 · NMEA 0183 · NTRIP Client & Caster |
| Ports & storage | 1 × USB Type-C (power / data / firmware) · 1 × UHF antenna (SMA male) · 8 GB storage |
| Battery & power | 7.2 V / 4900 mAh internal · rover up to 20 h · laser survey up to 15 h · visual stakeout up to 15 h · full charge 4.8 h · ext. 5 V / 2 A |
| Size & weight | Φ134 mm × 86 mm (Φ5.28 in × 3.39 in) · 800 g (1.76 lb) |
| Environmental | IP68 · survives 2 m pole-drop · operating −40°C to +65°C · storage −40°C to +85°C · ISO 9022-36-08, MIL-STD-810H |
| Field software | LandStar 8 (Android) — Visual Navigation, CAD AR Visual Stakeout, Laser Survey |
*Laser range up to 150 m under favourable conditions (low light, high-reflectivity targets); actual range varies with target reflectivity, ambient light and weather.
i85 FAQ
What is the CHCNAV i85 used for?
The i85 is a compact laser IMU-RTK GNSS receiver for land surveying, construction layout, engineering and utility surveys, mining and earthworks, and forestry. Its standout job is capturing obstructed, hard-to-reach and hazardous points safely with a visible green laser — points a GNSS-only rover can’t reach without climbing, wading, or stepping into traffic.
How does the laser measurement work?
The built-in green-laser rangefinder extracts survey-grade 3D coordinates by precise aiming. In typical use it reaches 2 cm at 5 m and 3 cm at 10 m. The software auto-captures the point once it recognises a stable aim, so you can hold the pole two-handed for shake-free shots instead of reaching for a “collect” button.
What is PointSky, and is it included?
PointSky delivers real-time, centimeter-level corrections by satellite — no local base station or NTRIP needed in supported regions. It reaches 2.5 cm horizontal in 3–5 minutes (under a minute in selected regions). One year of PointSky service is included as standard with every i85.
Does the i85 work with RTK / CORS networks in Canada?
Yes. It supports NTRIP client connections and works with Canadian RTK and VRS correction networks, including Latnet’s own correction network with expanding Alberta coverage. It can also run as a base or rover over its built-in 410–470 MHz UHF radio, with DistLink for long-range base operation.
Does the i85 IMU need initialization or leveling?
No. The 200 Hz AUTO-IMU is calibration-free and immune to magnetic disturbance — no shake-to-init and no bubble centring. It holds 3 cm accuracy at pole tilts up to 60°, and the upgraded heading accuracy is what keeps the laser measurements on spec.
How far can the laser reach?
Up to 150 m in ideal conditions — low ambient light and high-reflectivity surfaces such as plastered walls. In everyday work, much shorter ranges are recommended: at extreme distance, camera shake and the difficulty of clearly identifying the target in the auxiliary image can reduce accuracy.
What is the battery life?
Up to 20 hours as a UHF RTK rover, and around 15 hours for laser survey or visual stakeout, on the internal 7.2 V / 4900 mAh battery. A full charge takes about 4.8 hours, and it accepts USB-C power from a power bank or vehicle charger. Runtime varies with temperature and battery cycle life.
Can the i85 be used as both a base and a rover?
Yes. The receiver includes an integrated UHF radio and supports base-rover configurations, with DistLink enabling long-range, all-day base operation. Base and rover kits — including a DL8 external datalink option — are available; ask Latnet which configuration fits your workflow.
How is the i85 supported in Canada?
Latnet Technologies is an authorized CHCNAV dealer in Canada, providing local support, training, rentals, and workflow guidance for the i85 and the wider CHCNAV ecosystem — plus access to our own RTK correction network with expanding Alberta coverage.
Configure your CHCNAV i85 with Latnet Technologies
Latnet Technologies is an authorized CHCNAV dealer in Canada, providing local support, training, rentals, corrections-network access, and straight technical advice for the i85 and the wider CHCNAV GNSS ecosystem.
i85 Compact Laser IMU-RTK GNSS Receiver
EXTREME GNSS PERFORMANCE
LASER POWER ON TOP
