captuRTK™ TS21
Dual-camera RTK receiver with tilt compensation, visual stakeout, and AR guidance.
An innovative integration of visual positioning technology, GNSS, IMU and cameras
Point Cloud Measurement
Innovative visual measurement generates point clouds on site. Selecting points from photos directly corresponds to picking points within point clouds, eliminating the need for checking and adjustments.
Measure What You See
Pick multiple points at a time to speed up your workflow, completing projects faster and efficiently. Perfect for hard-to-reach places and challenging terrains.
TwinCam Visual Stakeout™
Using the front and bottom cameras at different distances, targets are marked onto the live view to quickly locate point positions and improve stakeout efficiency by 70%
Professional Cameras
The high-performance global shutter camera, low-distortion lens, and advanced algorithms achieve 2–4 cm accuracy, while the intelligent processor provides clear images for precise visual positioning and AR stakeout.
3D Modeling
Compatible with mainstream 3D modeling software, uses raw visual survey data for accurate and flexible post-processing to create detailed, high-precision, visually realistic 3D models.
Design for Field
With an IP68-rated design, the rugged housing protects the equipment in challenging environments. Featuring a futuristic design and color scheme, both TS21 and TS20 remain lightweight at just 0.85kg.
Technical Specifications
Signal TrackingGPS L1C/A, L1C, L2C, L2P, L5C; GLONASS L1OF, L2OF, L3OC; BeiDou B1I, B2I, B3I, B1C, B2a, B2b; Galileo E1, E5a, E5b, E5AltBOC, E6; QZSS L1C/A, L1C, L2C, L5C; SBAS L1C/A, L5; IRNSS L5; L-Band
Channels1792
Single Point Positioning (H/V)1.5m / 3.0m RMS
DGPS Positioning (H/V)0.25m / 0.5m RMS
High Precision Static (H/V)2.5mm+0.1ppm / 3.5mm+0.4ppm RMS
Static & Fast Static (H/V)2.5mm+0.5ppm / 5mm+0.5ppm RMS
Post Processed Kinematic (H/V)2.5mm+1ppm / 5mm+1ppm RMS
RTK Accuracy (H/V)8mm+1ppm / 15mm+1ppm RMS
Network RTK Accuracy (H/V)8mm+0.5ppm / 15mm+0.5ppm RMS
TAP Positioning Accuracy (H/V)15mm / 30mm RMS
TAP Convergence Time3 minutes
TAP CoverageGlobal
TAP Signal Stability99.99%
Image Sampling Accuracy2 cm (typical)
Image Point Measurement Accuracy2cm–4cm (2D, within 2m–15m distance)
Tilt Compensation Accuracy≤2 cm (within 60°)
Observation Accuracy — C/A Code10 cm
Observation Accuracy — P Code10 cm
Observation Accuracy — Carrier Phase1 mm
TTFF — Cold Start<35 s
TTFF — Warm Start<10 s
Reacquisition<1 s
Timing Accuracy20 ns RMS
Velocity Accuracy0.03 m/s RMS
Initialization4 s (typical)
Initialization Reliability>99.99%
Operating SystemLinux
StorageBuilt-in 32GB
Data FormatCMR, CMR+ (GPS only), RTCM 2.3, RTCM 3.0, RTCM 3.1, RTCM 3.2
Data OutputRINEX, NMEA-0183, Tersus Binary
Data Update Rate20 Hz
Software SupportTersus Nuwa
Cellular4G LTE/WCDMA/GSM/EDGE
Cellular BandsLTE FDD B1,B3,B7,B8,B20,B28A; LTE TDD B38,B40,B41; WCDMA B1,B8; GSM/EDGE B3,B8
Network ProtocolsNtrip Client, Ntrip Server, Tersus Caster Service (TCS)
Wi-Fi802.11b/g
Bluetooth4.1
Internal Radio — RF Transmit Power0.5W/1W/2W
Internal Radio — Frequency410–470 MHz
Internal Radio — Operating ModeHalf-duplex
Internal Radio — Channel Spacing12.5 / 25 kHz
Internal Radio — Modulation TypeGMSK, 4FSK
Internal Radio — Air Baud Rate4800/9600/19200 bps
Internal Radio — ProtocolsTrimTalk450, TrimMark 3, South, Transparent, Satel
USB OTGType-C, OTG x1
ButtonPower Button
LED IndicatorsSatellite, Correction Data, Static, Solution, Bluetooth
VoiceSupport
Power DisplaySupport
Smart Battery with Power DisplaySupport
Electronic BubbleSupport
Front CameraDual cameras (front + bottom)
Bottom Camera2.0MP
External Power SupplyUSB (5–20V)
Fast Charging15W max (5V 3A)
Lithium Battery7000mAh / 7.4V
Charging Time3 hours (20%–90%)
Battery Charging Temperature+10 to +45 °C
Battery Working TimeUp to 9 hours
Dimensionф132x68 mm
Weight≈850 g
GNSS AntennaIntegrated
Screw Hole for Assembly5/8''x11UNC-2B
VibrationMIL-STD-810G, FIG.514.6C-1
Operating Temperature-40 to +70 °C
Storage Temperature-55 to +85 °C
Relative Humidity100% not condensed
Water & Dust ProofIP68
Pole Drop onto Concrete2 m
Warranty PeriodOne Year
Documents
Firmware, software installers and configuration tools for this product are in the MyTersus portal. Open product downloads
Related Products
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Robotic total station designed for efficient surveying, intelligent stakeout, and automated field operations.
Total Stations
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