Door Opening Sensor Wireless Time Delay Door Alarm Door Sensor

strongProduct Featurestrong

strong1strong Product Size 341706 inch

strong2strong 4 in 1 MultiFunction General Alarm Constant Alarm Closingdoor Alert Time Delay Doorbell

strong3strong Batteried by 2pcs AAA batteries not included

strong4strong SelfAdhesive easy to install and operate

strong5strong 108 dB Loud Alarm can effectively prevent intruder entering through your doorwindow

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strong4 In 1 MultiFunctionstrong

strong1strong General alarm mode It alarms when doorswindows are open Stops when they are closed

strong2strong Constant Alarm Mode It alarms at least 30 seconds when triggered

strong3strong Time Delay Mode It sounds dididi when doorswindows opened 15 seconds later Can set the delay time               3153060 seconds the factory default is 15s This is perfect for freezers or refrigerators

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strongDoorbell Modestrong

It sounds Dingdong when doorswindows are open

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strongPackage Includingstrong

1 Doorwindow Alarm

1 Magnetic Stripe Double Sided Sticker User Manual