Door Stop Alarm Mini Wireless Vibration Triggered Home Wedge Shaped Stopper Alert Security System Block Blocking System
WIRELESS DOOR STOPPER ALARM is a portable alarm that make 120db alarm when triggered . helps alert homeowner or renter to deter intruder and possibly help notifies neighbours and also security authority.EASY INSTALLATION ?C no wiring needed; battery-operated (requires 1x9V battery . not included); place it under the door . the gap between the bottom of the door and the floor should be 10mm(0.38 in) to 35mm(1.35 in) .it can not slide on tile when door opens . smooth floor can try to use H-type sensitivity . vibration-sensing alarm.3 SENSITIVITY LEVELS ?C Low – Medium – High . with an adjustable sensitivity switch on the side;H level is the most sensitive level that vibration will trigger an alarm; please note when the alarm sound gradually becomes smaller . it means to replace the new battery.PORTABLE DOOR STOPPER ALARM ?C package include 3 door alarms . each weight about 120g; easy to carry; alarm loud 100db to protect you; great for travel; ideal for bedrooms . hotels . apartments . dorm rooms . front doors . etc; peace of mind when traveling or working alone.