Features: Super loud 90 dB alarm. Convenience in installation--just peel and stick. Super environmental suitability and stability. Dustproof and insect prevention. Warning door / window sticker is supplied free in package Operated by 3pcs of 1. 5V LR44 / AG 13 button cell ( included ) Magnetic sensor switch detects entry protecting your home or office whether you are in or out. Easily
mounted by adhesive. Type to window or door. Ideal entry warning for
homes, apartments, mobile homes, dormitory, offices, hotel rooms,
garages, and more! Specifications: Sensor type: alarm Alarm type: sound Material: plastic Color: White Quantity:10pcs Size: 65*32*20mm Package Included: 10 x Magnetic Sensor 10 x Magnetic Stick 30 x LR44 Button Battery
Returns Accepted for this item if it's within 30 Days