FUERS Wireless Door Stop Alarm System 120dB Loud Home Security Anti-Theft Door Block System Portable Doorstop Preasure Alarm

Ordered on 21/4, received on 29/4. Simple door stop alarm. Need to prepare your own 9V battery. Just place under the door. Take note of the door gap, if too small, it might not fit fully. But if your floor has good grip, it can still stay in place and will sound when the door is pushed open. Alarm is very loud. Even low setting already quite strong. Overall, good and useful for home or travel.

Ideal for travelers who stay overnight at hotels and resorts, this device helps prevent someone from copying your room key and sneaking in while you’re asleep. With this gadget, you can sleep soundly without worrying about anyone secretly entering your room while you’re asleep. If someone tries to open the door, the device will automatically trigger a loud alarm.