Non-Contact Laser Measurement

• Accuracy of up to 2 cm within 10 m, even without GNSS
• Non-contact measurement, ideal under bridges, in fenced areas, or across ditches
• Laser product classification: Class 3R

GNSS Positioning

• 1408 channels, with support for GPS, BDS, GLONASS, GALILEO, QZSS, NavIC, SBAS, and PPP
• RTK: H 8 mm + 1 ppm RMS / V 15 mm + 1 ppm RMS — typical initialization time < 10 s, reliability > 99.9%
• High-precision static: H 2.5 mm + 0.1 ppm / V 3.5 mm + 0.4 ppm RMS
• Code differential: H ±0.25 m + 1 ppm / V ±0.5 m + 1 ppm RMS
• Positioning rate: 1 Hz, 5 Hz, and 10 Hz
• Time to First Fix: cold start < 45 s, hot start < 30 s, signal re-acquisition < 2 s

Inertial Sensor (IMU)

• Automotive-grade IMU at 200 Hz, with auto-calibration
• No initialization required — instant measurement
• Tilt compensation: H 8 mm + 0.7 mm/° / V 15 mm + 0.7 mm/° (0–60°)
• Up to 40% better stability and accuracy, even on rugged terrain

Cameras and Visual Functions

• Front camera: image-assisted measurement and AR stakeout
• Bottom camera: AR stakeout
• Laser targeting displayed directly on screen
• Real-scene CAD stakeout (efficiency boost of up to 50%)

Communication

• Internal UHF LoRa radio: 1 W / 1.5 W adjustable power, 410–470 MHz, range of 15–20 km
• Supported protocols: LoRa, HI-TARGET, TRIMTALK450S, TRIMMARK III, SATEL-3AS, TRANSEOT
• Network modem: TDD-LTE, FDD-LTE, GSM
• Bluetooth 5.2, Wi-Fi 802.11 a/b/g/n/ac/ax, NFC
• Network modes: VRS, FKP, MAC, NTRIP protocol

Physical Features and Durability

• Dimensions: 130.97 mm × 68.7 mm — Weight: ≤ 0.73 kg
• Protection rating: IP68 (IEC 60529)
• Shock and vibration resistance: MIL-STD-810G, 514.6
• Designed to survive a 1.8 m natural fall onto concrete
• Operating temperature: -40 °C ~ +75 °C

Power and Storage

• Internal lithium battery 7.2 V / 4900 mAh
• Battery life: up to 20 h (RTK rover UHF/GSM), 13–17 h as a base
• Charging via USB Type-C (5V 2.8A) with standard chargers or power banks
• Internal storage: 64 GB ROM

Software

• Hi-Survey (Android) for land surveying and road engineering projects
• Compatible with Hi-Target controllers, smartphones, tablets, and third-party Android devices

• iHand55 5.5″ handheld
• Hi-Survey Road software
• Telescopic pole with mounts
• Hard carrying case