The Tinytag Energy Logger from Gemini Data Loggers is a safe and non-invasive tool for monitoring single and three phase power usage of both individual high consumption equipment and complete premises/installations. This easy to use hand held device may be used for spot-checks or for longer term recording, to identify when equipment is being used, times of peak load, how much energy is being used and the overall assessment of energy efficiency.

The Energy Logger combines ease of use with accurate, high level performance. Logging can be initiated by the touch of a button, so users do not need a laptop to operate the device on site, and it does not require the exposure of any live wires or terminals so it is also safe. Non-invasive flexible coils are used to monitor the current in each phase of a three phase supply while the voltage information may be obtained via a standard 13A wall socket. Like all Tinytags, the Energy Logger is configured with easy to use Tinytag Explorer software which provides clear viewing and management of data.

The Energy Logger will prove an essential tool for organisations aiming for a reduction in their energy consumption and assist with objectives for achieving or maintaining the ISO 14001 environmental standard. The Energy Logger costs £795 +VAT.

Other data loggers in the Tinytag range accurately monitor parameters such as temperature, humidity and CO2 locally or throughout an entire building: data gathering and analysis of results will help identify areas where improvements can be made to reduce energy consumption, maximise cost savings and ensure the wellbeing of those inside. Typically, Tinytags are used to:


  • Record environmental conditions to help comply with H&S regulations
  • Help calculate building temperature losses and to monitor energy usage
  • Monitor the effects of different types of building materials, e.g. loft or wall insulation
  • Help validate heating, air-conditioning or climate control systems


Gemini Data Loggers was established in 1984 and designs and manufactures the Tinytag range at its headquarters in Chichester in the UK, trading globally with a network of over 40 distributors


Further information


Tel: +44 (0)1243 813000

Gemini Data Loggers (UK) Ltd.

Scientific House, Terminus Road,

Chichester, West Sussex,

PO19 8UJ

United Kingdom