TS20
GNSS Receiver with AR Stakeout
See the target on screen.
Find the point in the field.
Bottom camera, GNSS and IMU in one unit. Follow the stakeout target in live view with TS20 and move towards the survey point using direction and distance guidance.
Multiple constellations and frequencies
Broad signal tracking including GPS, GLONASS, BeiDou and Galileo.
AR with bottom camera
Stakeout targets and guidance in live view.
Tilt compensation within 60°
Calibration-free IMU-GNSS technology.[1]
Field operation
7000 mAh battery and 15 W fast charging.[2]
Internal storage
On-device storage for survey data.
Field durability
Dust- and water-protected housing weighing approximately 850 g.
Find the on-screen target
in the field.
TS20 overlays stakeout information on the bottom-camera image. Move forward while viewing the terrain and target position on the same screen.
Target in live view
See the stakeout point alongside the actual surrounding surfaces. Track your position in the image as you approach.
GNSS, IMU and camera
Satellite position, tilt data and bottom-camera imagery work together to support stakeout guidance.
Clearer stakeout guidance
in the field.
The 2 MP bottom camera and three-dimensional guidance combine stakeout information with the field view.
2 MP camera.
Follow the target position and direction relative to the ground in Full HD live view.
Step by step to the point.
Follow direction arrows and remaining-distance information towards the target. Use the three-dimensional view as you approach.
Make effective use
of the field of view.
The angled bottom camera helps keep the target visible during stakeout. The compact housing and calibration-free IMU provide flexibility for daily surveying tasks.
See the direction.
Track the distance.
Select the target in NUWA field software and follow direction and distance information in AR view. Manage survey and stakeout data within the same project.
Lightweight housing.
Extended fieldwork.
At approximately 850 g and Ø134 × 71 mm, TS20 is easy to carry in the field.[2]
Up to 9 hours of operation
7000 mAh / 7.4 V battery. With 15 W fast charging, reach 20% to 90% in approximately 3 hours.[2]
IP68 protection
Dust- and water-resistant housing; −40 °C to +70 °C operating temperature and resistance to a 2 m pole drop onto concrete.
Flexible connectivity
Internal 410–470 MHz UHF radio, cellular, Wi-Fi, Bluetooth and USB Type-C connections.
Choose the camera setup
for your work.
TS20 and TS21 share the same compact housing. Choose according to whether you need photo-based point measurements alongside AR stakeout.
TS20
AR stakeout and target guidance in live view.
This productTS21
Photo-based point measurements, point-cloud generation and dual-camera AR stakeout.
Explore TS21 →Technical specifications.
Explore TS20 GNSS performance, camera specifications, connectivity options and field durability.
GNSS and signal tracking
| Channel count | 1792 |
|---|---|
| GPS | L1 C/A, L1C, L2C, L2P, L5C |
| GLONASS | L1OF, L2OF, L3OC |
| BeiDou | B1I, B2I, B3I, B1C, B2a, B2b |
| Galileo | E1, E5a, E5b, E5AltBOC, E6 |
| QZSS | L1 C/A, L1C, L2C, L5C |
| SBAS / IRNSS | SBAS: L1 C/A, L5 · IRNSS: L5 |
| L-band / TAP | Satellite-based TAP service is available only on the TS20-TAP version. |
| Data update rate | 20 Hz |
Positioning performance
| RTK accuracy (RMS) | Horizontal: 8 mm + 1 ppm Vertical: 15 mm + 1 ppm |
|---|---|
| Network RTK accuracy (RMS) | Horizontal: 8 mm + 0.5 ppm Vertical: 15 mm + 0.5 ppm |
| High-precision static (RMS) | Horizontal: 2.5 mm + 0.1 ppm Vertical: 3.5 mm + 0.4 ppm |
| Static / fast static (RMS) | Horizontal: 2.5 mm + 0.5 ppm Vertical: 5 mm + 0.5 ppm |
| PPK accuracy (RMS) | Horizontal: 2.5 mm + 1 ppm Vertical: 5 mm + 1 ppm |
| DGPS accuracy (RMS) | Horizontal: 0.25 m Vertical: 0.5 m |
| Single-point accuracy (RMS) | Horizontal: 1.5 m Vertical: 2.5 m |
| RTK initialisation | Typically 4 seconds; initialisation reliability >99.9%.[1] |
| Time to first fix (TTFF) | Cold start: <30 seconds Warm start: <5 seconds |
| Signal reacquisition | <1 second |
| Time / velocity accuracy (RMS) | 20 ns / 0.03 m/s |
| Performance conditions | Values depend on satellite visibility, multipath, atmospheric and field conditions.[1] |
Cameras, AR and tilt compensation
| Camera configuration | 2.0 MP bottom camera |
|---|---|
| AR stakeout | Live view and target guidance through the bottom camera |
| IMU | Calibration-free tilt compensation resistant to magnetic interference |
| Tilt compensation accuracy | ≤2 cm within 60°.[1] |
| Electronic level | Supported |
Connectivity and internal radio
| Cellular connectivity | 4G LTE / WCDMA / GSM / EDGE |
|---|---|
| Network protocols | NTRIP Client, NTRIP Server, TCP, Tersus Caster Service (TCS) |
| Wi-Fi | 802.11 a/b/g/n/ac |
| Bluetooth | 5.0 |
| NFC | Supported |
| USB | Type-C, OTG |
| UHF frequency range | 410–470 MHz |
| Radio output power | 0.5 W / 1.0 W |
| Radio operating mode | Half-duplex |
| Channel spacing | 12.5 / 25 / 250 kHz |
| Modulation | CSS, GMSK, 4FSK |
| Radio data rate | 4800 / 9600 / 19200 bps |
| Radio protocols | LORA, TrimTalk450, TrimMark 3, South, Transparent, Satel |
Battery and power
| Internal battery | Lithium; 7000 mAh / 7.4 V |
|---|---|
| Operating time | Up to 9 hours.[2] |
| Fast charging | Maximum 15 W (5 V / 3 A) |
| Charging time | Approximately 3 hours (20% to 90%) |
| External power | 5–20 V via USB |
| Charging temperature | +10 °C to +45 °C |
| Battery indicator | Supported |
Housing and durability
| Dimensions | Ø134 × 71 mm |
|---|---|
| Weight | Approximately 850 g.[2] |
| GNSS antenna | Integrated |
| Protection rating | IP68 |
| Operating temperature | −40 °C to +70 °C |
| Storage temperature | −55 °C to +85 °C |
| Relative humidity | 100%, non-condensing |
| Drop resistance | 2 m pole drop onto concrete |
| Vibration resistance | MIL-STD-810G, FIG 514.6C-1 |
System, data and software
| Operating system | Linux |
|---|---|
| Internal storage | 32 GB |
| Differential data formats | CMR, CMR+ (GPS only), RTCM 2.x / 3.x |
| Data output | RINEX, NMEA-0183, Tersus Binary |
| Field software | Tersus NUWA |
| User interface | Power button; satellite, correction data, static survey and solution status LED indicators |
| Notifications | Voice feedback and power indicator |
TAP version and satellite corrections
| Applicable version | TS20-TAP only. TAP service should not be assumed for the standard TS20. |
|---|---|
| Correction source | Satellite-delivered TAP; PPP positioning without a local RTK base station or CORS connection |
| TAP accuracy (RMS) | Horizontal: 15 mm Vertical: 30 mm |
| TAP convergence time | Manufacturer's stated time: 3 minutes |
| Service selection | TAP version, activation and service conditions are determined during quotation. |
- Accuracy and initialisation times depend on satellite geometry, signal obstructions, multipath, atmospheric and observation conditions. The ≤2 cm tilt value applies to measurements within 60°. ppm is the baseline-dependent error component; 1 ppm equals 1 mm per kilometre.
- Battery life varies with operating mode, temperature and battery condition. Dimensions and weight may vary with manufacturing processes and measurement methods.
Technical source: TS20 technical datasheet (Ver. 2.0, 11 December 2025) and Tersus product information. TAP service is available only on the TS20-TAP version.
TS20 datasheet
View the technical specifications in PDF format.
Be ready for the field
with TS20.
Let us select the receiver, controller and software for your surveying work. Contact us for product information, a demo and a quotation.