Door and window alarm

Description

Door sensor alarm function introduction: ● It can prevent thieves from calling the police when they push open the door or window. ● Can be used to prevent children from going out or opening dangerous cupboard doors ● Installation method: Magnetic control type ●Alarm sound: 90 decibels ● Uses 2 1.5V AA batteries (not included)     This product is easy to install, just stick the main and auxiliary parts on the chassis cover and chassis, or two windows respectively, and align them (leaving a gap of about 5 mm). When someone illegally opens the case or window (the main and auxiliary parts are separated), the alarm can sound a strong alarm to warn the intruder to leave. When you want to open the chassis, doors or windows yourself, they can be controlled by switches. Suitable for anti-theft in Internet cafes, residential buildings, offices, store counters, etc. Built-in 90db alarm output, The product is small and exquisite, and easy to install. The double-sided adhesive tape provided can be easily installed on the door or window. It is a cheap, high-quality, economical and practical technical preventive measure. In our local area, it has been fully recognized by residents and police. Just stick the main and auxiliary parts on the door and door frame, or two windows respectively, and align them (leaving a gap of about 5 mm). Once a thief pries the door or window, or attempts to steal (the main and auxiliary parts are separated), the alarm can sound a strong alarm to scare away the thief and remind the owner and people around to catch the thief. When you want to open doors or windows yourself, you can control them with switches. Suitable for anti-theft in residential buildings, offices, store counters and other places.   installation method: 1. Use double-sided tape to fix the host on the edge of the door/window. 2. Stick another strip door sensor on the door frame in a straight line along the host prompt line. 3. When checking the settings, turn the host switch to the "ON" position. 4. Open the door and see if the alarm sounds a siren. You can check whether the installation is successful.