Home Security Door Alarm with Window Sensor - 120dB, Easy Installation, 4 Modes (3 Pack)

About this item

• Home Protection: Ultra-sensitive magnetic sensor can quickly detect your door or window status, The wireless door alarm sensor works with 2*AAA battery (batteries are not included).
• 4 Alarm Modes: It includes 4 alarm modes--you can press the SET button to set the alarm mode what you like;#1 intruder alarm mode; #2 entry doorbell mode;#3 open alarm mode;#4 open reminder mode.
• No Worry Purchase: you will be supported by 7 days*24 hours of online service. We also offer an 18-month warranty. Please contact us for a satisfactory solution if any trouble happens to you.
• Simple Installation: The window and door alarm is adhesive on the bottom for ease of installation. Just apply the alarm sensor to the window or door to complete the process.
• Loud Alarm: This SECRUI window&door Alarm will emit a high volume alarm of 120dB when the two-part magnetic sensors are separated. It can let you know someone is entering or outing, so it’s a perfect window&door alarm for kids' safety, home security, apartment security