HS-DSA

I actually do recommend this, especially if you like sound machines that are strong and actually do their job. This one is definitely on the louder side, but in a good way. I already sleep with my sound machine turned up pretty high every night, and this still stood out to me in a noticeable way. I could hear it clearly from about 15 feet away, so it definitely fills the space instead of getting lost in the background. If you’re someone who needs consistent noise to sleep, block out other sounds, or just prefers something with a little more power, this would work really well. It’s not quiet or subtle, but that’s kind of the point if you’re trying to drown out other noise. Overall, it does what it’s supposed to do and does it well. WORTH THE MONEY and fairly easy to install. It does require those thick batteries so make sure you order that with this.

Does require a battery larger than a AA but works really well. SUPER loud. I suggest testing it outside first 😆

It's simple, it's effective, but proper functioning depends on your floor surface. For those who don't want to read thru the end....Conclusion: This is a great and simple solution to keep people from entering your home, while you are at home. But you have to buy additionally a 9V block battery, need a micro screw driver to place the battery and you have to buy a simple fastener solution (see below) for slippery floor surfaces (e.g. wooden floors, stone or tiles) Delivery: I bought it on Amazon. Delivery was this time one day late. Opening: The packaging of the Alarm is tricky to open. Its completely blistered. This is not very Eco-friendly and you need strong household scissors to open it. Content: Just the Alarm, A short 1/4 page instruction. NO battery included. you need to buy a 9V block battery separately. Installation / Functioning: First you need to buy extra a 9V battery... if you realize this only after the packaging arrived, this might be quite bothersome as many households will have AAA or AA batteries always at home but not 9V block batteries. The installation of the battery requires a micro screw drive. A normal screw driver will not get you far as you wil just damage the screw head. Battery once installed you should be good to go. The alarm is loud and it works very effective. But I have a wooden floor and the device always slid away when opening the door. The rubbers on the bottom would hold strong enough to the ground. So I bought this Scotch Reclosable Fasteners, Clear, 1 x 3-Inches, 2 Sets (RF9730) to hold it strong to the ground and the door cannot slide it away. ==> this works perfectly. 1) The door is completely and very tight blocked! This keeps intruders from entering your home AND 2) you can remove the alarm easily while this scotch fastener consist of two parts. One sticks to the floor and the other to the alarm and you can peel the device off any time easily from the floor. 2) The alarm goes safely off if the door opens and cannot be switch off by the intruder - given you have placed the alarm fixed to the ground with the fastener close enough to the door. Final rating: As the obligatory 9V block battery is missing and additional investment into a fastener solution for slippery surface is needed (depending on your home) i can unfortunately only give 4 stars. Once installed properly it works perfect. Open question remaining: How long will the battery last?

Love this door alarm!! I bought it for motel rooms, but thankfully I've not had any issues staying at hotels. I use it at home every night. It's very LOUD. It scared the he!! out of my boyfriend one morning when he opened the front door to leave. He didn't see it & didn't know what was so loud when it off. I bought one & sent it to my daughter who travels a lot. I highly recommend these, especially for women traveling alone.

I travel for a living and stay in hotels all over the world. This gives me a huge sense of security

VERY LOUD! Brought them on vacation and placed under door.

Make sure your door is low enough so that it presses against the lower front tip portion of the silver aluminum trigger of the alarm. If your door sits on an entryway lip, so it's elevated in relation to the inside ground level, and hence will only touch the higher back end of the silver trigger when opened, then the alarm will not sound off. In other words, you would think that having any part of the silver aluminum trigger being touched by the door would set off the alarm, but that's not true. Only the front lower tip area activates the alarm, and not the back part that's higher up and closer to the alarm speaker. Otherwise it seems built well enough for the price. The alarm sound is very loud, no way you won't be woken up to it.

Good for travel.

Objet qu'il faut posséder absolument ! J'étais septique, mais plus maintenant ! Vous entendez l'alarme à plus de 100 mètre ! Très forte résonance tout le quartiers entends ! En plus de bloqué la porte ! N'hésitez pas ! PS : Prévoir une pile de 9V ! Dommages qu'elle ne soit pas fournie ! Mais vu la qualité de l'appareil, aucun soucis !

Took this on touring holiday of Vietnam and Cambodia and as two women travelling we definitely felt safer in our rooms, would use when staying anywhere UK included, set it off by accident a couple of times when forgot it was under the door and it is really loud!!!!

Suena extremadamente fuerte. Detiene la puerta muy bien. Muy buen producto

VERY Loud door alarm. However it somehow ran out of battery after one use as it was travelling in my backpack

I like this. Not just a regular door stopper, it also has an alarm function, which makes it much more useful for home travel or even apartment use. Once pressure is applied, it gives off a very sharp and loud alarm sound, which is exactly what I wanted from that kind of product. It's simple, easy to use, and gives a little extra peace of mind.