Features

Magnetic Sensor Design: Equipped with a high-sensitivity magnetic sensor, the anti-theft alarm will alert you when doors or windows are opened, indicating unauthorized entry into your property.
Loud Alarm: Extra-loud, reaching 80dB or higher. When a door or window is opened illegally (i.e., the relative position between the main unit and secondary unit changes), the alarm emits a strong siren to warn off intruders and notify the owner.
Easy Installation: The magnetic sensor switch detects door/window status. It supports hassle-free adhesive installation and operation—simply press the ON/OFF switch to power it on/off (3 button batteries are included in the main unit). Tear off the double-sided tape on the back and stick the door/window alarm to the target location.
Wide Applications: This alarm is suitable for doors, windows, and lockers to prevent theft. It is an ideal entry warning device for homes, apartments, mobile homes, offices, hotel rooms, garages, etc.

Specifications

Material: Plastic, magnet, magnetic core
Color: White
Main Unit Dimensions (L x W x H): Approx. 6 x 3 x 2 cm / 2.36 x 1.18 x 0.79 inches
Magnetic Strip Dimensions (L x W x H): Approx. 5.4 x 1.3 x 1.1 cm / 2.13 x 0.51 x 0.43 inches
Alarm Volume: 90 decibels
Power Supply: 3 x 1.5V button batteries (included)

Ensure the switch is set to the OFF position. Insert three button batteries in the correct orientation and attach the battery cover.
Fix the main unit and magnetic box in place on cabinets, windows, etc., following the correct alignment. The marker on the magnetic box should face the main unit, and the magnetic box should be positioned against the side of the main unit with the buckle. Additionally, the magnetic box and main unit must be within the magnetic control range.
Set the switch to ON—the buzzer will start beeping. When the door or window is closed, the buzzer will stop, and the device will enter the alarm-ready state.

Due to differences in lighting and screen displays, the actual color of the product may slightly differ from the images.
Due to manual measurement, a size variation of 0.5-2 cm is allowed.