HW-201 Locator Two

Locator Two is the ideal solution for permanent, autonomous 3D displacement and tilt monitoring.

Locator Two is a permanent GNSS and tilt-based monitoring system for railways, bridges, and quay walls. It detects structural displacement and rotation early, enabling predictive asset management and reducing operational risk.

Absolute 3D GNSS positioning
Integrated 3D tilt sensing
Up to 96 GNSS measurements per day
Up to 288 tilt measurements per day
Dual solar-powered operation
Internal supercapacitors
Autonomous long-term monitoring
Cloud-based alerts and dashboards

Locator Two will be available from May 2026.

Infrastructure always moves. The question is: do you know when it shouldn’t?

Every bridge, railway, and quay wall is in constant motion, expanding, contracting, and shifting under the forces of temperature, traffic, tides, wind force, and time. Most of these movements are expected. The real challenge lies in identifying the subtle deviations that signal risk.

Traditional inspections and periodic surveys offer only snapshots in time. They miss the small, early signs that can prevent costly downtime or even catastrophic failure.

Dimensions (L x B x H)

280 x 155 x 79 mm

285 x 170 x 85 mm (box dimensions)

Weight

1650 g (excluding box)

Sensors

GNSS, tilt meter, temperature and barometer

Connectivity

LTE-M (bands: B1, B2, B3, B4, B5, B8, B12, B13, B14, B18, B19, B20, B25, B26, B28, B66)

Power

Supercapacitor: 4.2 V (air transport safe)

Solar panel: 2 x 1W

Charging: Solar panel or USB (with custom cable)

Temperature

Each measurement from -40°C to +60°C

Resolution

Temperature resolution: 0.1° C

Barometer resolution: 0.1 hPa

Casing/material

Outside: ASA / RAL 7047

Bracket: Stainless Steel A4

Mounting options

Screws, gluing

GNSS

Constellations & bands

GPS, GLONASS, Galileo, BeiDou and QZSS

L1C/A, L1OF, L2C, L2OF, B1I, B2I, E1B/C and E5b multi band, (184 channels)

Precision

Post Processed Static (PPS):

- Horizontal Precision: 2 mm + 0.5 ppm (1σ)

- Vertical Precision: 4 mm + 0.5 ppm (1σ)

- Long term trend-monitoring precision: <1 mm*

*Based on comparing daily averages of at least 12 daily measurements under similar climatic (temperature) conditions.

Measurement frequency: 1 to 96 times per day (configurable with platform)

Tilt meter

Sensor: 3-axis MEMS accelerometer

Range: +10° (due to reliable GNSS measurement)

Axes: 3-axis inclination measurement with respect to gravity's direction. Reports the two

axes of rotation from the horizontal plane in any orientation

Resolution: 0,001° / 0.018 mm/m

Precision (1s): 0,002° / 0.035 mm/m

Measurement frequency: 1 to 288 times per day (configurable with platform)

Monitoring Your Locator One Devices

With Parvamoti, you can manage all your Locator One and Two devices and easily start projects.

The system is designed with various user types in mind, including dealer managers, company managers, and project viewers, each with specific rights and access levels. This flexibility makes managing your projects efficient and straightforward.

Learn more