[DETAIL] Note: Our products are not compatible with other brands. The sensor must be connected to the alarm control panel for operation and cannot be directly connected to a mobile app. Installation height is about 2.2 meters above ground and the optimized detection angle for most motion sensor is 90 degree. The sensor should face the detected area with this consideration for best coverage. It is advised to install with the face of motion sensor perpendicular to the most probable moving detection of people for the highest effective detection.Before use, make sure the power switch of PIR motion sensors is at the ON position. [ATTRIBUTES] - Hign-concerned Chemical: None - Model Number: 92 - Brand Name: GauTone - Hign-concerned Chemical: None - Model Number: 92 - Brand Name: GauTone - Origin: Mainland China - Certification: CE - Smart home platform: Other