For over 40 years, Gemini Data Loggers has been helping organisations across the UK monitor and manage their environments with precision and ease. 
As a UK manufacturer, Gemini designs and produces the trusted Tinytag range of data loggers, providing accurate, reliable tools that support energy efficiency, sustainability, and long-term cost savings.
Whether you’re meeting Net Zero goals, improving building performance, or achieving value for money, accurate data is essential.
Tinytag Energy Loggers enable facilities teams, housing associations and property developers alike to monitor real-time power and energy consumption across sites. By identifying energy-intensive areas & tracking usage trends, organisations can make informed decisions that help to reduce both operational costs & carbon emissions.
Tinytag solutions are easy to install, scalable, and designed for real-world environments, from heritage properties and civic buildings to schools, offices, and housing estates. Non-invasive sensors make them ideal for use in both legacy infrastructure and new developments, without the disruption or complexity of major system upgrades. Data is analysed using intuitive software tools, allowing users to visualise performance, benchmark improvements, and generate reports to support compliance.
Whether your goal is to lower energy bills, support sustainability commitments, or provide transparent reporting on environmental performance, Tinytag delivers the data you need to drive meaningful change.