Siemens develops energy efficiency through intelligent presence-dependent lighting and climate control

The Siemens Building Technologies Division is introducing two new motion and presence detectors, Gamma UP 258/E11 and UP 258/E21. Both devices turn on the lights depending on the light level and time of day, provided somebody is present within the capture area. Heating, air-conditioning and ventilation can also be controlled based on the presence of people in the room. Lighting and HVAC systems are controlled independently. These demand- and presence-based heating and constant light level controls offer energy savings of up to 40%. Both devices support the creation of up to four offset lighting groups. While the UP 258/E11 turns the lighting groups on and off based on demand, the UP 258/E21 has an integrated brightness sensor. This sensor allows the lighting groups to be controlled based on different brightness values.