... sensor by light 3.spray interval: 7.5,10,15,30m 4.use two size D batteries 5.with CE ... when there is no lightNIGHTspray every 7.5/10/15/30 minutes without light, stay idle when there ... is lightINTERVALperfume spray interval selection(7.5,10,15, 30 minutes)7.5M when switch on,spray ... spray every 10 minutes15M when switch on,spray every 15 minutes30M when switch on,spray every 30 minutesMain ...