Flashes every 2 seconds: self-testing state.
Flashes twice: self-testing is finished, entering working mode.
Flashes once: movement is detected.
Flashes once every 3 seconds: low battery indication (immediate battery change recommended). If the motion detector is connected with Chuango WiFi Alarm OV-300/LTE-400, you will receive a push notification via the DreamCatcher Life app, when the battery is low.