... touch the waste bins. The product integrated the micro-computer, infrared sensor, precision mechanical set. It is a Hi-tech, innovation, power ... lamina opened; c. Press "CLOSE" button 1 second, the indicator light 3 seconds, the rotary lamina closed; d. Press :OPEN" button ... . On the alarm state, press "OPEN" button 1 second, indicator light 3 seconds ,release alarm system.(7). Battery work life: If ...