Grundfos CIU 903 Interface Unit for SQFlex

The Grundfos CIU 903 is a dedicated interface and communication unit for SQFlex submersible pumps, designed to provide simple and effective monitoring, control, and data communication in off-grid and hybrid water supply systems.

The CIU 903 enables real-time monitoring and configuration of your SQFlex pump via the Grundfos GO app, providing easy access to operational data and system status from your mobile device. The unit also offers connection points for a start/stop switch, level switch, and pulsating water meter, giving you flexible control options to suit your system’s needs.

Compact and easy to integrate, the CIU 903 supports seamless plug-and-play installation with existing SQFlex pumps, ensuring reliable pump performance and efficient system management.

 CIU 903 enables monitoring with Grundfos GO. Moreover, the CIU 903 enables connection of a start/stop switch, level switch and pulsating water meter.

FEATURES

• Designed specifically for Grundfos SQFlex submersible pump systems
• Provides pump monitoring, control, and communication in a single unit
• Supports wireless setup and monitoring via Grundfos GO app
• Connection terminals for start/stop switch, level switch, and pulsating water meter
• Enables real-time system status and data readouts
• Compact, easy-to-install design for off-grid or remote pumping setups
• Ideal for solar and hybrid water supply systems