*PARTIAL SET - ONLY 3 Pcs* 12 Pack Wireless Security Window/Door Alarm, Magnetic Sensor Door Window Burglar Alert Alarm Pool Alarms Super Loud for Home, Garage, Apartment, Dorm, RV and Office(Include Batteries)

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

More features

• 【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 2 adjustable settings (on/off).
• 【ALARM ON AND OFF MODE】 When someone come in and open a door or window, making the gap more than 0.5 inches, the alarm 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.
• 【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.
• 【EASY TO USE】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.