Wireless Home Security Window Door Entry Alarm RV Burglar Alarm

• Window/Door Entry Alarm System for Home Security.
• No installation required --- just stick it on the side of window or door!
• Double-side Adhesive tape on unit for easy mounting.
• Magnetic sensor switch detects entry protecting your home or office whenever somebody in or out.
• Up to 90 dB alarm sound.
• ON/OFF slide switch
• Main Unit: Approx. 1.25 x 2.50 x 1 inches (31 x 63 x 23 mm)
• Magnetic sensor :(12 x 55 x 14 mm)
• Working voltage: DC 4.5 voltage (3 pieces of AG13/LR44 button cell included)

Package included:
1 x alarm unit
1 x Magnetic sensor