Non contractual video Wireless door opening alarm for doors, windows, glass compartments, garage, velvet, etc. Are you looking for a way to protect your home? This wireless door and window alarm is easy to install and does not need to be wired. Very easy to set up and use. The wireless window, door or garage alarm sounds a super loud alarm to scare off intruders. Protect your store, office, home or any entrance to the house. The door and window entry alarm is very convenient and easy to use. The alarm unit is attached to the door and window frame and the magnet is attached to the "on/OFF" door and window switch. The alarm is easy to use and sensitive. It is magnetically operated. When two magnetic elements are separated, a 120 Db sound signal can be emitted. No one can enter or open a protected window without an audible alarm. Easy to install, each piece is tagged and can be attached to doors and windows. It's simple, right? Wireless Door, Window, Glass Compartment Opening Alarm Detector Wireless Door and Window Opening Alarm Detector Features: Approximate Dimensions: 6 x 4 x 2 cm. Use the 3 LR44 batteries supplied. Wireless Door Opening Alarm Sensor, Window, Glass Compartment, Velvet < p>Store Story - Home Small Alert Windows Trailer Truck camping - theft protection - Wireless 90db theft and Theft protection Without wires or electricity, this is a practical and effective solution to protect against d 'possible burglaries or unauthorized visitors. Home alarm, home alarm, door alarm, security alarm, window alarm, TV Watch, tv advertising, TV Store, TV Watch, TV shopping Weight (kg): 0045 Packaging (cm): 12.0x8.0x3.0