This motion sensor uses Passive Infra Red detection. It will reliably detect a human moving up to 15 ft away, but is "pet immune" so it won't detect small dogs, cats or other pets.

• PIR technology
• Dry relay contact output
• Runs on 12V DC, drawn directly from the eZEio
• Connect up to 4 of these directly to the inputs of the eZEio controller

This sensor is ideal for detecting presence to control lights or HVAC based on actual use of the premise rather than just schedules.