Meridian M20 DUAL CAMERAS

DUAL CAMERAS VISUAL GNSS RTK

Combines advanced technology with upgraded high-definition Camera, IMU, and 4G integration, M20 can quickly capture the site in images and measure points either in the field or later in the office, it enables you to measure what you see, such as obstruction points, obstacle points, dangerous points, and map hundreds of points with survey-grade accuracy within minutes and capture the scene quickly and decide what should be measured later–even if the scene subse- quently changes or disappears.

VR for Superior Visual Surveying

The M20 achieves real-time& non-contact measurement via camera, enabling precise measurements at points where signals are blocked or where access is difficult or unsafe. Its advanced cameras extract survey-grade 3D coordinates from real-world video, maps hundreds of survey-grade accurate points within minutes, providing higher efficiency and reliability.

3D Modeling

The M20’s video photogrammetry algorithms enable 3D modeling of buildings and facades. It effectively fuses drone and GNSS RTK data to efficiently perform 3D modeling over large areas. Additionally, the M20 is compatible with indus- try-standard 3D modeling software.

AR Stakeout

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 seam- lessly switches between the handheld controller and rover, ensuring fast and accurate stakeout experiences.

Calibration-Free Solution

Equipped with 120° calibration-free IMU technology in a compact body, it complements the laser’s outstanding performance, extending the M20’s application range to locations that traditional RTK systems cannot reach, open- ing up new horizons for product applications, enhancing customer satisfaction and boosting operational efficiency.

Longer Working Distance

Equipping the MeridianLink protocol internal radio offers 15km working range and increases flexibility. By eliminating the need for an external radio, the M20 becomes more lightweight, less complex, and more portable, which can lead to increased efficiency and convenience in the field.

Technical Specification

GNSS Signal
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
Format	CMR, CMR+, RTCM2.X, RTCM3.X
Data Output	NMEA-0183, RINEX, TXT, CMR
Data Updating Rate	Up to 20Hz
Time to Recapture	<1s
Hot start	<10s
Cold start	<40s
Initialization reliability	>99.9%
Positioning Performance
Single Point Positioning (RMS)	Horizontal: 1.5m Vertical: 2.5m
DGPS (RMS)	Horizontal: 0.4m \| Vertical: 0.8m
Real-Time Kinematic (RMS)	Horizontal: 8mm+1x1ppm \| Vertical: 15mm+1x1ppm
Post-Processed Kinematic (RMS)	Horizontal: 3mm + 1 ppm Vertical: 5mm + 1 ppm
Precise Point Positioning (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
Communication
Bluetooth	V2.1+EDR/V4.0 Dual Mode
WiFi	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	32GB, Up to 64GB
Internal Radio	Transmitting Power:2W(37±1dBm) 1W(30±1dBm) Frequency: 410~470MHz Range: 3–5 km or 5–8 km under ideal conditions Protocol: TRIMTALK 450S, TRIMMK3, SOUTH, TRANSEOT, SATEL, MeridianLink Air Baud Rate: 9600, 19200,11000
Battery
Specifications	7.2V ，7000 mAh lithium-ion Rechargeable Battery
Operating Time	RTK Rover no camera: Up to 26 hours Static: Up to 40 hours Visual survey: Up to 10 hours Base mode: Up to 12 hours
Charging	USB PD 15V/2A (Supports Quick Charging Adapter)
Dual-Camera
AR Sensor pixels	Global shutter with 5 MP
VR Sensor pixels	Global shutter with 2 MP (5MP optional)
VR Field of view	75°C
Video frame rate	30fps
Image accuracy	2 ~ 4 cm 95% (2σ)@10m
Environment
Operating Temperature	-40°C~+85°C
Storage Temperature	-55°C~+85°C
Anti-seismic	2m Pole Drop Onto Concrete
Dust & Waterproof	IP68
Physical
I/O Interface	1× USB type-C port; 1 × SMA antenna port; 1× SIM cardslot; 1 × 5 pin LEMO port
Dimensions	119mm×119mm×76mm
Weight	662g