Wireless Magnetic Window & Door Alarm Sensor

Overview

This wireless window and door alarm system uses magnetic sensors to detect entry and alert you with a loud 90dB sound. Ideal for home security, child safety, and preventing unauthorized access to windows and doors in homes, apartments, offices, and more.

Features

• 90dB alarm sound to alert on door or window opening
• No drilling, wiring, or screws required—adhesive tape installation
• Powered by 3 included 1.5V LR44 button batteries
• Magnetic sensor design with 5mm activation distance
• On/Off switch for easy operation
• Suitable for homes, apartments, offices, hotels, garages, and mobile homes

Dimensions

• Large sensor unit: 3 × 2 × 6 cm (1.18 × 0.79 × 2.36 inches)
• Small magnet unit: 5 × 1.3 × 1 cm (1.97 × 0.52 × 0.4 inches)
• Item weight: 28g (0.07 lbs)
• Package dimensions: 16 × 10 × 3.5 cm (6.3 × 3.94 × 1.4 inches)

Materials & Care

• Material: PP plastic
• Batteries: 3 × 1.5V LR44 button batteries (included)
• Replace batteries when low to maintain normal alarm function
• Sensor distance: more than 5mm gap required between alarm and magnet