4 Pack Wireless Window Door Alarm Home Protection Against Burglar Wireless Chime Alarms - Loud Safe Door Alarms for Kids Safety, DIY for Home Security, Office Protection (White)… - LiXiongBao, LXB_MenChuangJingBaoQi_2Pcs

• SMART DESIGN: The alarm and magnetic stripe are separated more than 0.39inch(10mm), it keeps going off until you close door(make them connection) or turn it off(switch to the button "OFF"). Size: 2.52" x 1.67" x 0.66, no much space needed to install. It has 3 adjustable settings (on/off/set). Switch to the button "SET", soound like DI..., won't scare your kids or pets decide to leave without your knowing. Switch to the button "ON", beep...sound like police siren, very loud KEEP YOUR HOME AND OFFICE SAFE: Remind you immediately when the pets or someone come in. Prevent theft when no one at home, and the loud alarm will scare the thief so that you can sleep well at night without worrying about the intruders ALARM ON AND OFF MODE: When someone come in and open a door or window, making the gap more than 0.5 inches, this product will immediately send out an alarm. (high loud, > 90 dB) . If you want to keep the door open, please switch to the alarm off mode HOW TO INSTALL: Wipe the flat surface, peel off sticker, mount the alarm on door and magnetic stripe on door frame. Done!! 【NOTE: 1. Take out the plastic insulation sheet in battery compartment before use, 2. The small triangle on the side of the strip magnet is aligned with the small triangle on the side of the alarm with a spacing of less than 0.39inch(10mm), 3. Your frame and window or door must be flush, make these two components must be installed very flush with one another】 What will you get: 4 X Safty Alarm, Manufacturer: LiXiongBao