South ALPS2 Laser RTK GNSS Receiver with Camera and IMU

South ALPS2 Laser RTK GNSS Receiver for Flexible Field Surveying

The South ALPS2 is a laser RTK GNSS receiver built for field crews who need accurate positioning without being limited by every obstruction, corner, wall, ditch or unsafe access point. It combines multi-constellation GNSS tracking, laser point measurement, camera-assisted stakeout and IMU tilt compensation in one compact receiver.

For surveyors, construction workers, GIS teams, engineers and drone mapping crews, this means fewer workarounds in the field. Instead of always placing the pole directly on the point, the ALPS2 can help measure or stake points from a safer and more practical position. This is useful around traffic, water, fences, roof edges, building corners, piles, walls, trees and other locations where traditional RTK work can become slow or unsafe.

Laser Measurement for Hard-to-Reach Points

The built-in green laser gives the South ALPS2 a practical advantage on sites where the target point cannot easily be occupied with a pole. It can be used for laser distance measurement, laser point collection and laser stakeout workflows. In real fieldwork, this helps when measuring points under roofs, near obstacles, beside roads, along walls, in small spaces or in semi-indoor areas where direct GNSS occupation is difficult.

Laser measurement does not replace good survey practice, but it gives crews another way to keep working when the site layout is not ideal. For construction layout and topographic surveying, it can reduce the need to climb, stretch, step into unsafe areas or spend extra time finding a direct pole position.

Dual Cameras for Visual Stakeout

The ALPS2 uses a front camera and a bottom camera to support live-view AR stakeout. The front camera helps with general direction and site awareness when approaching a target. The bottom camera helps with more precise visual guidance when the operator is close to the point.

This is especially useful for construction crews and surveyors who work from CAD drawings or need to stake out many points across a busy site. Visual guidance makes the stakeout process easier to understand, even for less experienced operators, because the field software can show the target position in relation to the real scene.

IMU Tilt Compensation for Faster Point Collection

With calibration-free IMU tilt compensation, the South ALPS2 allows users to measure points without carefully levelling the pole every time. This can save time on repetitive surveys, uneven ground, slopes, trenches, road edges and places where keeping the pole perfectly vertical is difficult.

For everyday RTK users, this means smoother workflows and fewer delays. Crews can keep moving while still collecting accurate GNSS data, provided they follow correct field procedures and work within the receiver’s operating conditions.

Multi-Constellation GNSS Performance

The South ALPS2 tracks 1698 channels and supports major satellite constellations including GPS, GLONASS, BeiDou, Galileo, SBAS, IRNSS and QZSS. This wide satellite support is important for field crews working in mixed environments such as construction sites, urban areas, tree-lined roads, open fields and infrastructure corridors.

For RTK work, the receiver supports both UHF and NTRIP correction workflows. The internal UHF radio works in the 410–470 MHz range and supports commonly used radio protocols. NTRIP support allows the ALPS2 to connect to correction networks when mobile internet coverage is available.

Built for Surveying and Construction Sites

The ALPS2 has a magnesium aluminium alloy housing, IP68 waterproof and dustproof protection, and resistance against a 2 metre pole drop onto cement under specified conditions. This makes it suitable for demanding outdoor use where equipment is exposed to dust, rain, mud, vibration and daily handling by field crews.

Battery life depends on the working mode. Static operation can run up to 25 hours under controlled conditions, while rover, laser, visual stakeout and base modes use more power. Charging is handled through a Type-C connection, which is practical for modern field kits and vehicle-based workflows.

Who Uses the South ALPS2?

The South ALPS2 is suited to professionals who need accurate GNSS measurements but also want more flexibility than a standard RTK rover. Land surveyors can use it for topographic surveys, control work, cadastral work, site checks and stakeout. Construction teams can use it for layout, earthworks, road projects, utilities and general site measurement.

GIS users and mapping teams can benefit from fast field data collection, while drone pilots can use the receiver for ground control points and check points. Engineering firms working on roads, rail, marine edges, utilities, buildings and infrastructure can use the laser and camera functions to handle awkward points more efficiently.

Practical Advantages in the Field

• Measure difficult or unsafe points from a more convenient position using laser measurement.
• Use camera-assisted AR stakeout to make layout work clearer and easier to follow.
• Work faster on slopes, uneven ground and repetitive point collection with IMU tilt compensation.
• Connect through UHF or NTRIP depending on your correction source and project location.
• Use a rugged IP68 receiver designed for daily outdoor surveying and construction work.

Buying the South ALPS2 from Global GPS Systems

Global GPS Systems supplies the South ALPS2 to surveyors, construction professionals, GIS users, drone pilots and engineering teams worldwide. Our team can help you choose the right configuration for your workflow, including rover use, base and rover setups, controller options, software and RTK correction needs.

If you are comparing laser RTK GNSS receivers, the South ALPS2 is a strong option for users who want accurate GNSS positioning with the added flexibility of laser measurement and visual stakeout in one field-ready receiver.