Sell Security Anti-theft Door Stopper Bar Burglar Alarm for door best price

Security Anti-theft Door Stopper Bar Burglar Alarm for door feature: • Easy to install on windows/doors •Battery compartment,3x1.5V AAA battery power supply (battery not included)(installed by positive and negative poles) • The magnetic sensor switch can detect the state of entry, whether you are at home or out, can protect your home or office; used to rent a room, any home, office or hotel room front door or back door security alarm device. • If you are traveling in the wild or abroad, please make sure to bring it with you. The hotel room is not safe. •Small size, wedge-shaped anti-skid design; it is suitable for any hinged door. •durable. Made of stainless steel and plastic. It has three sensitivity levels and super noise. When activated, a continuous 120 dB high tone alarm will sound. Easy to operate, just put it under the door. Specifications: Equipment: access control alarm Function: 3 sensitivity level Size: 14cm x 4.5cm x 4.0cm/5.51 x 1.77 x 1.57" Material: ABS + stainless steel Power supply mode: 3 x 1.5V AAA battery (not included)