1.Solar Power Energy. 2.Alarm when motion detected,alarm sound ... Arm and disarm by keypad or Timer. This is a Solar power alarm with PIR sensor detection , you can easily ... , 60° horizontal & 120° verticallWall mounted or free standinglPower supply :Solar Power and 4pcs ‘AAA’ alkaline battery(not included).lNo wiring ... Office,Library,Wearhouse, Home and so on SP62L-Wireless PIR Solar Alarm with Timer