ZZRUI Portable 120dB Door Stop Alarm for Home and Travel (1 Pack)

About this item

• Simple setup – no need for wiring; operates on batteries (1x9V battery required, not included), press the power button on the back to activate; insert under the door with a gap of 10mm (0.38 in) to 35mm (1.35 in) between the door bottom and the floor, ensure it does not slide on tile or smooth hardwood when the door opens, for smooth floors consider using H-type sensitivity, vibration-triggered alarm.
• PORTABLE DOOR STOPPER ALARM – package include one door alarm,each weight about 120g;easy to carry;alarm loud 120db to protect you;great for travel;ideal for bedrooms, hotels, apartments, dorm rooms, front doors, etc;peace of mind when traveling or working alone.
• 3 SENSITIVITY LEVELS – 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.
• DOOR STOPPER SECURITY ALARM – the door stopper alarm in "on" status,when door pressure is applied,the door alarm will be triggered while make extremely loud 120db alarm,helps wake/alert homeowner or renter, helps deter intruder and possibly notifies neighbors,security protection.
• NON-SKID DOOR STOPPER – the door stopper alarm in "off" status,it can be used as common damping rubber base door wedge,hold door in open position,no any loud alarm sound.