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Meridian M25 Laser GNSS RTK is an innovative solution that combines advanced laser technology with Camera, IMU, and 4G integration. It is calibration-free, significantly boosting operational efficiency and laser measuring makes the rodless survey improve efficiency and reduce risk factors. The M25 laser receiver provides a new way to work in challenging & impossible scenarios with high accuracy, including riverine stake-out, bridge pile surveying, elevation surveying, municipal surveying, and outdoor & indoor combination surveying.
Laser technology offers unparalleled advantages in precision positioning and makes surveying work rodless and Easier. Combining cutting-edge 100m laser technology with full constellation GNSS, IMU, and 4G integration, delivers calibration-free accuracy, significantly enhancing work efficiency and reducing potential risks.
Visual positioning eases point finding by overlaying design files onto real scenes, enhancing stakeout efficiency. A high-performance HD camera achieves high accuracy with precise signal tracking. The 360- degree AR stakeout seamlessly switches between the handheld controller and rover, ensuring fast and accurate stakeout experiences.
Equipped with laser & 120° calibration-free IMU technology in a small body, it complements the laser's outstanding performance, extending the M25's application range to locations that traditional RTK systems cannot reach, opening up new horizons for product applications, enhancing customer satisfaction and boosting operational efficiency.
Equipping the MeridianLink protocol internal radio offers a 15km working range and increases flexibility. By eliminating the need for an external radio, the M25 becomes more lightweight, less complex, and more portable, which can lead to increased efficiency and convenience in the field.
Supports BDS, GPS, GLONASS, Galileo, QZSS, and SBAS. Its 1408 channels offer comprehensive GNSS signal tracking capabilities.
| Channel | 1760 |
| BDS | B1I，B2I，B3I，B1C，B2a，B2b* |
| GPS | L1 C/A，L1C*，L2P(Y)，L2C，L5 |
| GLONASS | L1，L2，L3* |
| GALILEO | E1，E5a，E5b，E6* |
| QZSS | L1C/A, L1C, L2C, L5, L6* |
| SBAS | L1, L5* |
| NavIC(IRNSS)* | L5 |
| L-band | B2b PPP (Only for the Asian-Pacific Region) & HAS* |
| Data Format | CMR, CMR+, RTCM2.X, RTCM3.X |
| Data Output | NMEA-0183, RINEX, TXT |
| Data Updating Rate | Up to 20Hz |
| Time to Recapture | <1s |
| Cold Start | <40s |
| Single Point Positioning (RMS) | Horizontal: 1.5m | Vertical: 3.0m |
| DGPS (RMS) | Horizontal: 0.4m | Vertical: 0.8m |
| Real-Time Kinematic (RMS) | Horizontal: ±(8mm+1×1ppm) · Vertical: ±(15mm+1×1ppm) |
| Speed Accuracy (RMS) | 0.03m/s |
| Static Accuracy (RMS) | Horizontal: ± (2.5mm+0.5ppm) · Vertical: ± (5mm+0.5ppm) |
| Time Accuracy (RMS) | 20ns |
| Speed Accuracy | ≥0.03m/s |
| Tilt Compensation Accuracy | ≤2cm(Tilt Angle≤60°, Up to 120°) |
| IMU Update Frequency | 200Hz |
| Laser Accuracy (RMS) | Horizontal: ±(8mm+3mm/m) · Vertical: ±(15mm+3mm/m) · Supports 120-meter laser range with high-brightness laser technology |
| Bluetooth | SPP3.0+BLE5.0 @ Power=10mW |
| WiFi | 802.11 a/b/g/n/ac@ Power max (EIRP)=17dBm |
| WebUI | View status, update firmware, configure operating modes, download data, etc. |
| Cellular | LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28 · LTE TDD: B38/39/40/41 |
| Storage | 32GB |
| Internal Radio | TX & RX, Transmitting Power:2W(33±1dBm) 1W(30±1dBm), Baud rate: 9600, 19200 · Frequency: 410~470MHz, Channel Spacing: 12,5/25kHz · Protocol: SOUTH19200, SOUTH9600,Trimtalk9600,TRANSEOT9600, HITARGET9600, HITARGET19200, SATEL，MeridianLink optional · Data Only, Antenna Impedance 50Ohm |
| Specifications | 7.2V，6600mAh Lithium-ion Rechargeable Battery |
| Operating Times | Laser RTK Rover: Up to 22 hours (Typical Power Consumption) · Static: Up to 40 hours (Typical Power Consumption) |
| Charging | Support USB PD 12V/1.5A (Supports Quick Charging Adapter) |
| Operating Temperature | -40°C~+85°C |
| Storage Temperature | -55°C~+85°C |
| Anti-seismic | 2m Pole Drop, 1.2m free drop onto Concrete |
| Dust & Waterproof | IP68 |
| AR Camera | 5MP Large viewing angle, supports live view stakeout |
| Laser Assisted Camera | 5MP Supports laser aimingdisplay |
| Button | 2 |
| I/O Interface | 1× USB type-C port; 1 × TNC antenna port; 1× SIM card slot; 1 × 5 pin LEMO port |
| Dimensions | 133mm×133mm×84.5mm |
| Weight | ≤749g |
* Specifications may vary by configuration. Please confirm with our team before ordering.
Contact our technical survey engineers in Dhaka. We provide full warranty, local spare parts, and training for all equipment.
