Hindi ka ba makatulog ng mahimbing sa gabi, dahil kinakabahan na baka masalisihan? Maglagay ng Anti Theft Alarm!!! Door entry alarm Window entry alarm Alarm system IWAS NAKAW Easily mounted by adhesive to window or Door magnetic sensor switch detects entry protecting your Home or office whether are in or out . warning Door/window sticker is supplied free in package operated by 3 pcs 1.5VLR44button cell batteries.included inpackage Size: About 6.2*3*2cm,5.4*1.3*1.1cm Weight: About 40g Battery: 3*1.5V LR44(include). Instructions: 1.Use the double-side adhesive tape to fix the main unit at the side of the door/window.Attach the bar magnet to door frame/window frame with the refernce line of main unit. 2.Test the setup by swithing the system's swithing to "ON" positon of main unit and see whether the alarm can be triggered by opening the door/window. #SamutSariStore