DEWENWILS Door Sensor Alarm, Window Alarm for Kids Safety and Home Security, 120dB Volume Door Sensor Alarm, Chime/Off/Alarm, Anti-Theft Window Door Alarm Sensor for Room and Garage, 4 Pack

  • 【Super Loud 120dB Volume】Shock sensor, when door or window is opened, knocked, caused vibration and shattered, the door sensor alarm can make a 120dB loud and clear sound, helps deter intruders and alert the householder.
  • 【3 Adjustable Settings】Magnetic sensor, each with 3 adjustable settings, off/chime/alarm, press Chime/OFF/Alarm switch on the side to switch. The loud chime or alarm ensure kids and home security better.
  • 【Easy to Install】 Easy to install via adhesive, tear off the double-sided tape on the backpack, stick the door alarm to the flat target position, no wiring needed, no screws needed.
  • 【Packing with Batteries】 Includes 4 window/door alarms, each with 3x LR44 Batteries. Be sure to remove the isolation tape in the battery compartment before installing.
  • 【Wide Application】Ideal door alarm for kids safety, prevent children going out without notice, perfect entry warning for home, garage, apartment, dorm, office, RV and so on.