Time Delay Wireless Alarm Door Sensor Door Annunciator Door Opening Sensor Window Security Alarm

Label:Yes Item Type: Wireless sensor Package Included: 1pcs Door/window Alarm. Size: AS The Picture Battered by 2pcs AAA batteries (not included). Materials: ABS 4 in 1 Multi-Function --- General Alarm, Constant Alarm, Closing-door Alert (Time Delay), Doorbell.

Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.