Meridian M20L Laser
High Precision Laser IMU-RTK GNSS
Meridian M20L Green Laser GNSS RTK is an innovative solution that combines advanced laser technology 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 M20L green laser receiver provides a new way to work in challenging & impossible& dangerous scenarios with high accuracy, including riverine stake-out, bridge pile surveying, elevation surveying, municipal surveying, outdoor & indoor combination surveying, and power station surveying, ect.
Latest Green Laser Technology
Laser technology offers unparalleled advantages in precision positioning and makes surveying work rodless and Easier. Combining cutting-edge 100m range laser technology with full constellation GNSS, IMU, and 4G integration, delivers calibration-free accuracy, significantly enhancing work efficiency and reducing potential risks.
Calibration-Free Solution
Equipped with laser & 120° calibration-free IMU technology in a small body, it complements the laser’s outstanding performance, extend- ing the M20L’s application range to locations that traditional RTK systems cannot reach, opening up new horizons for product applica- tions, enhancing customer satisfaction and boosting operational effi- ciency.
Powerful Battery
With 7.4V 7000mah and the quick-charge capability, sup- ports you in working more than 26hours and greatly saves your time.
Palm Size
The palm-sized RTK (Real-Time Kinematic) system combines elegance with precision, offering a compact solution for accurate positioning on-the-go.
Powerful Battery
With 7.4V 7000mah and the quick-charge capability, supports you in working more than 26 hours and greatly saves your time.
Technical Specification
| Category | Specification | Details |
|---|---|---|
| GNSS Signal | Channel | 1760 (1980 option) |
| 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, L1, L2, 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 20 Hz | |
| Time to Recapture | <1 s | |
| Cold Start | <40 s | |
| Positioning Performance | Single Point Positioning (RMS) | Horizontal: 1.5 m | Vertical: 3.0 m |
| DGPS (RMS) | Horizontal: 0.4 m | Vertical: 0.8 m | |
| Real-Time Kinematic (RMS) | Horizontal: ±(8 mm + 1 ppm) Vertical: ±(15 mm + 1 ppm) | |
| Speed Accuracy (RMS) | 0.03 m/s | |
| Static Accuracy (RMS) | Horizontal: ±(2.5 mm + 0.5 ppm) Vertical: ±(5 mm + 0.5 ppm) | |
| Time Accuracy (RMS) | 20 ns | |
| Speed Accuracy | ≥0.03 m/s | |
| Tilt Compensation Accuracy | ≤2 cm (Tilt Angle ≤60°, up to 120°) | |
| IMU Update Frequency | 200 Hz | |
| Laser Accuracy (RMS) | Horizontal: ±(8 mm + 3 mm/m) Vertical: ±(15 mm + 3 mm/m) Green laser range: 100 m | |
| Communication | Bluetooth | SPP3.0 + BLE5.0 Dual Mode, 2.4 GHz @ +6 dBm |
| WiFi Option | 802.11 a/b/g/n/ac | |
| Cellular | LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28 LTE TDD: B38/39/40/41 WCDMA: B1/2/4/5/6/8/19 GSM: B2/3/5/8 | |
| Storage | 32 GB | |
| Internal Radio | Transmitting Power: 2 W (33 ± 1 dBm), 1 W (30 ± 1 dBm) Frequency: 410~470 MHz; Channel Spacing: 12.5 kHz Protocol: SOUTH19200, SOUTH9600, TRIMTALK9600, TRANSEOT, SATEL Air Baud Rate: 9600, 19200, 11000 | |
| Battery | Specifications | 7.4 V, 7000 mAh lithium-ion rechargeable battery |
| Operating Times | RTK base/rover mode: up to 20 hours RTK laser/AR: up to 15 hours Static: up to 40 hours (Typical Power Consumption) | |
| Charging | Support USB PD 15 V / 2 A (supports quick charging adapter) | |
| Environment | Operating Temperature | -40°C ~ +85°C |
| Storage Temperature | -55°C ~ +85°C | |
| Anti-seismic | 2 m pole drop onto concrete | |
| Dust & Waterproof | IP68 | |
| Physical | AR Camera | 12 MP large viewing angle, for live view stakeout |
| I/O Interface | 1 × USB Type-C port; 1 × TNC antenna port; 1 × SIM card slot; 1 × 5 pin LEMO port | |
| Dimensions | 125 mm × 125 mm × 79 mm | |
| Weight | ≤699 g |