Wireless Home Window Door Entry Burglar Security Alarm System

Description:New and high qualitySuper loud 90 dB alarmConvenience in installation--just peel and stickSuper environmental suitability and stabilityDustproof and insect preventionEasily mounted by adhesive.Type to window or door. Ideal entry warning for homes,apartments,mobile homes,do rms,offices,hotel rooms,garages,and more.Magnetic sensor switch detects entry protecting your home or office whether you are in or out.Warning door/window sticker is supplied free in package.Operated by 3pcs of 5VLR44/AG 13 button cell(included)Specifications:Sensor type: alarmAlarm type: soundMaterial: plasticColor: WhiteSize: 6.2cm x 3.2cm x 2cmPackage Included:1x Magnetic Sensor1x Magnetic Stick3x LR44 Button Battery