General description The Graffiti Smart Zigbee Human Presence Sensor is an intelligent sensing device designed to detect motion and illuminance. With a wide-angle infrared detection of 105°, it allows you to monitor indoor movement in real-time through your mobile phone and receive alarm notifications if any unauthorized presence is detected. Technical specifications Type: Intelligent Sensing Detection Angle: 105° (side view and down view) Detection Distance: Up to 6 meters Color: White Material: ABS Measurement Allowed Error: +/- 1-3 cm Compatibility and accessories Supports Wi-Fi and Zigbee connections Includes 1 x Human Presence Sensor Includes 1 x English Manual Installation Use tape to install the base of the PIR sensor on a wall or other vertical position Refer to the detection angle and distance to choose a suitable location for installation