The Merten ARGUS Presence Relay 2-fold is a highly advanced presence detector designed for ceiling installation indoors. This device uses a PIR sensor module to detect moving heat sources, such as people. The detection range is adjustable, allowing for flexible adaptation to various environments. The presence detector can automatically control lighting by activating a stair light duration when movement is detected. Additionally, the sensor module features an integrated light sensor that turns on the lighting only when a certain brightness threshold is not met. This ensures energy-efficient use of lighting, as the device can also turn off the lights when sufficient natural light is available. The Merten ARGUS Presence Relay is suitable for various loads and can be installed in a 60mm flush-mounted box, simplifying the installation process.

• Adjustable detection range for flexible use
• Integrated light sensor for brightness control
• Compatible with various loads, including incandescent and energy-saving lamps
• Mountable in 60mm flush-mounted boxes or optional surface-mounted housing
• Two outputs with different control types for versatile applications.