Eltek has over three decades of experience delivering reliable environmental monitoring and data logging solutions from our UK base in Cambridge.

Now part of Grant Instruments, we offer an expanded portfolio that combines Eltek’s trusted wireless systems with Grant’s advanced Squirrel and dataTaker® data loggers - giving customers unmatched flexibility, precision and scalability.

Why Eltek

  • Comprehensive portfolio

    Wireless, wired and hybrid data logging

  • Proven reliability

    Used in critical and regulated environments

  • Expert support

    UK-based technical advice and system design

  • Scalable solutions

    From single loggers to enterprise-wide systems

Markets We Serve

Built Environment

Optimize building performance and structural integrity through continuous monitoring. Our systems help professionals control temperature, humidity, and energy efficiency, supporting sustainable building management and conservation.

Industrial applications

Monitor processes, equipment, and building performance with dependable data logging solutions. From HVAC optimization to compliance monitoring, our systems deliver actionable insights for industrial and commercial environments.

Environmental applications

Collect accurate, high-quality data for field studies, experimental research, and environmental monitoring. Our flexible data loggers provide the reliability required for both remote and outdoor applications.

Laboratories & Life Science

Ensure controlled environments remain within specification with precise, traceable data logging. We provide trusted solutions for laboratories and pharmaceutical facilities where data integrity and regulatory compliance are critical.

Product Families

  • Eltek Gen II Wireless Systems

    Flexible environmental monitoring with long battery life, alarms and centralised software.

  • Squirrel Data Loggers (Grant Instruments)

    Portable and fixed multi-channel data loggers for environmental, industrial and research applications.

  • dataTaker® Data Loggers (Grant Instruments)

    Rugged, high-accuracy loggers for advanced research, field studies and complex measurement tasks.