Door/window entry alarm

الوصف

Features include:- Easy mounted by adhesive tape to window or door. Magnetic sensor switch detects entry. ON/OFF Switch, so you can switch the unit off when not needed and back on at night or when you are out. Operated by 3 x 1.5V LR*4 cell (batteries are included). A piercing *0dB decibel alarm if your doors or windows are opened. Fits all types of windows or doors. No techinal skills required to fit, just peel off backing, stick in place and turn on switch. No drilling, tools or wiring required. Use everywhere; at home, office, shed, garage or boat.