UniStrong
S1 U Engineering IMU RTK Receiver
The S1 U engineering-grade IMU RTK receiver is equipped with a high-performance, high-precision GNSS OEM board featuring full-constellation, full-frequency signal tracking and comprehensive support for the BeiDou Satellite Navigation System. Pre-installed with Stonex fourth-generation IMU tilt compensation technology, it significantly improves engineering stakeout efficiency.
- 400 Hz
- IMU Update Rate
- 900 g
- Weight
- IP67
- Ingress Protection
Original UniStrong unit·Authorized distributor
Overview
About the S1
Specifications
The S1U Engineering IMU RTK Receiver is equipped with a high-performance, high-precision GNSS positioning OEM board, providing full-constellation, multi-frequency signal tracking with comprehensive support for the BeiDou navigation satellite system. Pre-installed with Stonex fourth-generation IMU tilt compensation technology, it significantly improves engineering stakeout efficiency.
Engineering Surveying · Guaranteed Efficiency
The S1U Engineering IMU RTK Receiver is a powerful tool for engineering surveying, offering comprehensive features, stable performance, and reliable quality. Paired with the tailor-made professional surveying software SurPAD 4.2, it meets the demands of various stakeout tasks, such as road construction, power line surveys, site leveling control, CAD applications, and railway stakeout. Alignment Construction Stakeout: Used for alignment projects, hydraulic engineering, and water conservancy construction. Site Elevation Control: Site leveling, landscape elevation design, and real-time cut/fill display. Power Line Survey: Handles power line route selection, survey design, and tower foundation cross-section measurement. CAD Application: CAD import and editing, allowing alignment construction to be directly imported for stakeout.
Full-constellation, multi-frequency signal tracking with comprehensive support for the BeiDou navigation satellite system. Signal: Enhanced anti-interference, higher accuracy, superior performance, and efficient fixed solutions. Network: Ready to survey right after power-on, includes a 1-year CORS account and 3 years of free cellular data. Battery Life: Ultra-long battery life with a built-in 3.6V 10500mAh intelligent lithium battery, easily lasting over 20 hours. Ingress Protection: IP67 industrial-grade dust and water protection, reliably handling various complex environments with confidence.
Fourth-Generation IMU Tilt Measurement
Stonex fourth-generation IMU tilt compensation technology is immune to electromagnetic interference and eliminates the need for bubble leveling—simply pick up the pole and start measuring or staking out on the move. Increases operational efficiency by 50%, supports up to 60° tilt angle with 2 cm accuracy.
P9IV Numeric Keypad Android Data Controller
This product comes standard with the P9IV data controller. The P9IV features high configuration, high performance, a large keypad, and low power consumption. Its transflective sunlight-readable display provides clearer visuals as sunlight intensifies while remaining energy-efficient, delivering up to 36 hours of standby time. The P9IV data controller adopts a 3x3 numeric keypad layout for enhanced operating comfort.
Specifications
Technical data
Values from the UniStrong datasheet. Ask us for the full sheet or a side by side with another model.
GNSS Performance
- Tracking Characteristics
- BDS-2: B1I, B2I, B3I
- Tracking Characteristics
- BDS-3: B1C, B2a, B2b, ACEBOC
- Tracking Characteristics
- GPS: L1C/A, L1C, L1P, L2C, L2P, L5
- Tracking Characteristics
- GLONASS: G1, G2, G3
- Tracking Characteristics
- Galileo: E1, E5a, E5b, AltBOC, E6
- Tracking Characteristics
- QZSS: L1C/A, L1C, L2C, L5, LEX
- Data Output
- NMEA0183, NMEA2000, Crescent binary
- Differential Data Output
- RTCM SC-104 (SBAS/Beacon), proprietary differential format ROX, RTCM2.x, RTCM3.x, CMR, CMR+
- Differential Data Output
- RTCM SC-104 (SBAS/Beacon), proprietary differential format ROX, RTCM2.x, RTCM3.x, CMR, CMR+
Accuracy Specifications
- Static Surveying
- Horizontal: ±(2.5+0.5×10 -6 D) mm, Vertical: ±(5+0.5×10 -6 D) mm
- RTK Surveying
- Horizontal: ±(8+1×10 -6 D) mm, Vertical: ±(15+1×10 -6 D) mm
IMU Tilt Compensation
- Compensation Accuracy
- 8 mm + 0.3 mm/° tilt (<2 cm within 30°)
- Compensation Angle
- 0 ~ 70°
- IMU Update Rate
- 400 Hz
System Platform
- Operating System
- Linux
- Internal Storage
- Onboard 8 GB
- Bluetooth
- Bluetooth 5.0, backward compatible, BLE
- Wi-Fi
- 802.11 b/g/n
Electrical Specifications
- Battery
- Built-in smart lithium battery, 10,500 mAh, 3.6 V
- Input Voltage
- 9 ~ 28V DC
Physical Specifications
- Dimensions
- 152 mm × 92 mm (including bottom thread height)
- Weight
- 900 g
User Interaction
- Button
- Power button for powering on/off the device. Short press once to broadcast current operating mode and status.
Data Interfaces
- 5-Pin Port
- Used to connect external power supply and external UHF radio.
- Type-C
- Used for direct charging and data transmission.
- SIM Card Slot
- For SIM card installation
Environmental Specifications
- Operating Temperature
- -30℃ ~ 70℃
- Storage Temperature
- -40℃ ~ 80℃
- Ingress Protection
- IP67
- Drop Resistance
- Withstands 2 m pole drop onto hard concrete
- Humidity
- Resistant to 99.9% condensation
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