【2026 Updated】SPHEREFIX-SP35 (C100T)

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【2026 Updated】SPHEREFIX-SP35 (C100T) Technical Specs: High-Precision GNSS RTK for Surveying

29 January 2026

In surveying, accuracy, portability and stability decide work efficiency. A device’s real strength lies in its core technical specs. For surveyors, a high-performance GNSS RTK simplifies field work and ensures precision. Today, we break down SPHEREFIX-SP35 (C100T) specs, covering core positioning, functions and controllers, and link them to real scenarios.

1. Why Technical Specs Matter for Surveying Equipment?

Surveying needs high accuracy; a small error causes rework. Technical specs indicate a device’s accuracy, stability and adaptability. Unlike consumer products, SPHEREFIX-SP35 (C100T) is professional. Its specs determine three core capabilities and distinguish it from ordinary devices.
• Positioning Accuracy: Specs like positioning and tilt compensation ensure data reliability and avoid errors.
• Work Efficiency: Satellite reception, RTK speed and battery life boost efficiency and reduce fatigue.
• Environmental Adaptability: Protection level and temperature range ensure stable operation in harsh fields.
In short, its specs are a surveyor’s guarantee. Understanding them helps you choose the right device and use its advantages. Next, we break down specs from three aspects: core device, functions and supporting terminal.

2. Full Breakdown of SPHEREFIX-SP35 (C100T) Core Technical Specs (2026 Updated)

SPHEREFIX-SP35 (C100T) is a compact multi-frequency GNSS receiver. It integrates AR staking, laser surveying and high-precision positioning. Paired with C100T controller, it forms a complete solution. We divide specs into three modules with clear parameters and explanations.

2.1 SP35 Receiver Core Specs: The "Heart" of High-Precision Positioning

The SP35 receiver is the system core. Its performance, satellite reception and configuration determine accuracy and stability, setting it apart from others.

Spec Category	Specific Parameters	Simple Explanation
Core Processor & System	ARM Cortex-A7, Linux system	Efficient, low-power, stable for long field work and compatible with survey software.
Satellite Reception & Channels	Multi-system; 1408 channels; PPP-B2b/E6 protocols	Fast signal capture in complex areas; protocols improve positioning accuracy.
Precisione di posizionamento	Static: ±(2.5mm+1ppm)/±(5mm+1ppm); RTK: ±(8mm+1ppm)/±(15mm+1ppm); Tilt <2cm (≤60°)	Meets high-precision needs; flexible tilt operation reduces field errors.
Key Work Speed	Update ≤20Hz; Re-acquisition <1s; RTK init <40s	Real-time data; fast speed reduces waiting and boosts efficiency.

2.2 C100T Data Controller: A Surveyor’s Efficient Assistant

The C100T is designed for surveying. Its performance, battery and protection ensure good on-site operation, pairing perfectly with SP35.

• Core: 8-core 2.0GHz CPU, Android 11; 4GB+64GB; compatible with survey software.
• Display: 5.45-inch sunlight-readable HD touchscreen, operable with gloves.
• Battery: 9000mAh, 18-hour life, meets all-day field work needs.
• Protection: IP68, waterproof/dustproof/shockproof, lightweight and easy to hold.
• Communication: Wi-Fi/Bluetooth/4G; 13MP camera for on-site evidence.

2.3 Core Function Module Specs: Simplify Survey Work

SPHEREFIX-SP35 has three core modules. They solve field pain points and improve convenience and accuracy.

2.3.1 AR Reality Staking Module

• Camera: 1920*1080px, 1/2.8-inch, f/2.5, 69.3° FOV, distortion <0.38%.
• Accuracy: Horizontal ±(8mm+1ppm), Vertical ±(15mm+1ppm).
• Function: Overlays survey points on real scenes, intuitive and error-reducing.

2.3.2 Camera-Assisted Laser Survey Module

• Laser Accuracy: ≤2.5cm (5m); controllable 3D tilt error.
• Camera: 4224*3200px, 1/3.06-inch, f/2.9, distortion <1%.
• Function: Non-contact measurement for dangerous areas, reduces manual errors.

2.3.3 Communication & Storage Module

• Modes: 4G, Bluetooth, Wi-Fi, 1.5W LoRa radio (410~470MHz).
• Radio: Adjustable power, supports SATEL/LORA; baud rate 4800/9600/19200.
• Storage: 8GB built-in, supports AR staking data.
• Function: Smooth transmission anywhere; safe data storage.

2.3.4 Battery & Environmental Adaptation Module

• Battery: 7.4V 6500mAh, ≥16-hour life, supports fast charging.
• Adaptation: -30°C~+65°C (operate); IP68; 2m drop; magnesium alloy shell.
• Function: All-day work; adapts to harsh fields; lightweight (780g) and durable.

3. How to Use the Device in Different Survey Scenarios?

SPHEREFIX-SP35 suits various scenarios. We provide targeted suggestions to use its advantages fully.
• High-Precision Survey: Use static accuracy and multi-satellite reception; turn on 20Hz update.
• On-Site Staking: Prioritize AR staking and tilt compensation; use fast RTK init.
• Complex Fields: Rely on IP68 and wide temperature; use laser for non-contact measurement.
• Remote Areas: Turn on LoRa radio; use 6500mAh battery for all-day work.
• Light Survey: Use basic RTK; pair with C100T for simple operation; enjoy lightweight design.

4. Common Misunderstandings About Survey Equipment Specs

Many surveyors misunderstand specs, affecting device use and causing errors. We list three common ones to avoid mistakes.

Misunderstanding 1: Only Focus on RTK Accuracy, Ignore Static Accuracy?

RTK is not enough. Static accuracy ensures high-precision survey quality. SPHEREFIX-SP35 has both; ignoring static causes large errors.

Misunderstanding 2: Tilt Compensation Accuracy Is Unimportant?

It’s hard to keep the device vertical in fields. Its <2cm tilt compensation (≤60°) ensures accuracy; forcing vertical increases errors.

Misunderstanding 3: Protection Level and Battery Life Do Not Affect Work?

IP68 prevents damage; 16-hour battery ensures all-day work. Ignoring them causes device failure and project delays.

5. Conclusion: SPHEREFIX-SP35 (C100T) Empowers Surveying with Strong Specs

SPHEREFIX-SP35 is a reliable partner for surveyors. It has multi-satellite support, high precision, AR+laser, IP68, portability and long battery life.
Its specs fit all survey scenarios, solving key pain points. It helps both experienced and new surveyors work efficiently with better results.
Leave a comment for questions about specs or operation; we will reply soon.
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