The Teko 402.16 is an energy management system designed to monitor and control energy usage in buildings. It is a comprehensive system that enables the tracking of energy usage patterns and the implementation of energy efficiency measures to reduce costs. It can be used to monitor temperature, humidity, air quality, and more, with the ability to view data, change settings, and receive alarms remotely from a mobile device. The system has a number of features, such as a customizable graphical user interface to track energy usage, automatic notifications when energy usage exceeds predetermined targets, and the ability to link with other systems for further monitoring, control, and optimization of energy usage.