120db Touch Sensor, Door Handle Alarm, Anti Theft Vibration Triggered Portable Door Security Alarm for Doors for Kids, Toddler, Elderly, Hotel, Travel, Bedroom, Ghost

A small and very loud alarm! It works at the first touch of your door knob .I have it on my doorknob all the time.The alarm goes off long enough for you to check who is at your door and then decide to answer or not.

Very cheaply made. Goes off even when door or window not jarred. Instructions are awful! Would never buy again!

Arrived on time as described and no surprises on internal hardware, circuit board etc.

I love this 😀 product. It worked great for me on my vacation. I put it on the doorknob in the hotel. I felt safe to goto sleep. It can be very sensitive at time as long as you do touch the door.

I should have listened to the majority of the reviews. This is total junk. You can’t even get batteries into it. I just threw it away and cut my losses.

The media could not be loaded. I ordered 4. They operated as designed straight out of the package. MAKE SURE you install the 9 volt battery properly. The device WILL short out if the battery is installed wrong. After testing, I took them apart and modified each one with a larger retractable antenna and a LED light for when it is triggered. (videos are available via the internet for the build) Basically this is a Theremin device, the same as much much more expensive REM Pods. This will save you several hundred dollars if you are doing ghost investigations.

Works really well and is loud when it senses.

PUEDE SENTIR LOS PASOS DE ALGUIEN CAMINANDO DEL OTRO LADO DE LA PUERTA, EL SONIDO ES BASTANTE FUERTE Y REPETITIVO; FUNCIONA CON BATERÍA. NO COMPRENDO SU EFICACIA EN UNA PUERTA DE HOTEL POR EJEMPLO YA QUE SIGNIFICARIA QUE NADIE PODRIA CAMINAR POR EL PASILLO AFUERA DE LA HABITACIÓN.