Wireless Window Door Magnetic Sensor Alarm

Overview

A battery-powered magnetic sensor alarm for windows and doors that emits a loud 90dB alert when opened. Designed for home security, child safety, and office protection without professional installation.

Features

• 90dB alarm sound to detect entry and alert occupants
• No drilling, wiring, or screws required — adhesive mounting only
• Powered by 3 LR44 button cell batteries (included)
• Simple on/off switch activation
• Suitable for homes, apartments, offices, hotels, and garages

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)
• Operating distance between units: 5mm (0.2 inches) or less
• Product weight: 28g (0.07 lbs)

Materials & Care

• Material: polypropylene plastic
• Batteries: 3 × 1.5V LR44 button cells included; replace when low battery indication appears