Spherefix C100T Rugged Android GNSS Survey Data Controller

A purpose-built controller for GNSS fieldwork

The Spherefix C100T Data Controller is designed for surveyors, construction professionals, GIS users and engineering teams that need a dependable field terminal for controlling GNSS equipment and managing measurement data. It provides the portability of an Android handheld together with the physical controls and environmental protection required for regular outdoor use.

The C100T can be paired with a compatible RTK GNSS receiver through Bluetooth and used to run supported surveying or data-collection software. In the field, this gives users a single device for configuring the receiver, connecting to correction services, collecting points, entering feature codes, carrying out stakeout work and reviewing stored project data.

Readable controls in bright outdoor conditions

The 5.45-inch HD touchscreen is designed to remain readable in direct sunlight. This is useful on open construction sites, roads, railway corridors and agricultural land where standard consumer-device screens can be difficult to see. Its narrow handheld format also makes the controller practical to use on a survey pole or carry between measurement locations.

A physical keypad supports faster and more controlled data entry when touchscreen-only operation is inconvenient. Dedicated navigation, function, application and measurement buttons provide quick access to frequently used actions. The configurable application button can be assigned to supported software, while the positioning button can be used for rapid measurement functions within a compatible survey application.

Android performance for surveying software

The C100T runs Android 11 and uses an eight-core 2.0 GHz processor with 4 GB of RAM. This hardware is intended to provide smooth operation for compatible GNSS surveying, GIS and mapping applications without making the controller unnecessarily large or complicated.

Its 64 GB of built-in storage provides space for project files, coordinate data, drawings, photographs and application data. Storage can be expanded with a compatible microSD card of up to 512 GB when additional capacity is needed for larger projects or long-term field records.

Flexible communication in the field

Integrated 4G mobile connectivity allows the controller to access network RTK correction services, cloud platforms and online project information where network coverage is available. Dual-SIM support can be useful for crews working across regions or using more than one mobile network. The second card position can alternatively be used for microSD storage.

Bluetooth 5.0 BLE supports wireless communication with compatible GNSS receivers and other field equipment. Dual-band 2.4 GHz and 5 GHz Wi-Fi provides access to local networks and mobile hotspots, while NFC adds another option for compatible identification or data-transfer workflows.

Battery capacity for full working days

The integrated 9,000 mAh battery provides up to 18 hours of stated operating time. This helps survey and construction teams work through a normal field day without stopping to replace batteries or repeatedly recharge the controller.

USB-C charging simplifies power management because the controller can be charged from compatible mains adapters, computers or field power supplies. Rapid-charging support helps reduce downtime between projects, although actual operating and charging times will depend on screen brightness, mobile-network use, connected equipment and installed applications.

Designed for difficult site conditions

An IP68 protection rating helps protect the C100T against dust and water during outdoor use. The controller is also specified to withstand a 1.2-metre pole drop, making it better suited to active surveying and construction environments than a conventional smartphone or tablet.

Its operating-temperature range supports work in both cold and hot field conditions. A sealed port design helps maintain environmental protection, provided that the charging and card-slot covers are correctly closed after use.

Camera and field documentation

The built-in 13 MP rear camera can be used to record site conditions, survey markers, installed assets and other project details. Linking photographs with field notes and measured features can make collected information clearer for office teams, clients and later site visits.

Audio, vibration and LED notifications provide visible and physical feedback while working in noisy environments. Integrated light and motion sensors support normal Android device functions and compatible field applications.

Applications for the Spherefix C100T

The C100T is suitable for a broad range of GNSS and geospatial workflows. Surveyors can use it for topographic measurement, stakeout and point coding. Construction teams can use it for site layout, level checks and recording completed work. GIS and utility crews can collect asset information, photographs and coordinates directly in the field.

• RTK GNSS receiver control and network correction access
• Construction layout and point stakeout
• Topographic and cadastral data collection
• Utility and infrastructure asset mapping
• Road, railway and corridor surveys
• GIS feature collection and field documentation

Choosing a field controller from Global GPS Systems

Global GPS Systems supplies professional GNSS equipment for surveyors, engineers, construction crews and GIS professionals. The Spherefix C100T is a practical choice for users who need a rugged Android controller with a physical keyboard, long battery endurance and the communication options required for modern RTK workflows.

Before selecting a configuration, check that the required survey application, GNSS receiver and mobile-network bands are compatible with the controller. The C100T is a field data terminal rather than a survey-grade RTK receiver by itself, so accurate centimetre-level positioning requires connection to suitable GNSS equipment and a compatible correction source.