Door Contact Detection Alarm Device

Need some more protection? This detection alarm can "guard" your home or office seven days a week, 24 hours a day. This is a brand new electronic door contact alarm device, without any external connections. Portable design, can be placed anywhere. Equipped with a universal base, can be wall mounted. No hesitation to try it! Specifications: Without any external connections Portable design, can be placed anywhere Equipped with a universal base, can be wall mounted Small size, easy to carry This product is widely used in homes, shops, factories and all places Alarm Output: 120db Size: 51 x 38 x 20mm/2.0 x 1.5 x 0.8in(Main); 50 x 14 x 12mm/2.0 x 0.5 x 0.5in(Magnetic Stripe) Battery: 3 x 1.5V AG13 Button Cell(Included)