TECKNET Door Alarms for Kids Safety, Window Alarm Pool Alarms Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Wireless Alarm for House Hotel Cars Sheds Caravans (3 Pack)

Es la segunda vez que compro este tipo de alarmas y estoy muy satisfecha. las instale porque mi perrito suele escaparse cada vez que abrimos la puerta, y estas alarmas han sido la solucion perfecta. Son faciles de instalar y lo mejor es que ofrecen diferentes opciones de volumen y sonidos, lo que me permite perzonalizarlas segun lo que necesito. Tambien me gusto que no se despegan, el pegamento que traen es bastante resistente y cuando las quite para cambiarles la pila no se despego la pintura de la puerta. Muy recomendadas.

pretty loud and accurate would love to be smaller o fit in tight areas tho other than that its good. jus hope that tape is strong enough. so it does not fall.

This alarm checked all the boxes. There is a disclaimer that the noise may affect your hearing due to its high pitch, but it is adjustable, and the tones can be switched. Perfect for exit doors or windows.

It works great and blends in well with my white door. It has 2 ring options and 3 volumns. The first ring is like a doorbell that rings once. The second is a high pitch alarm that continues until the door is closed or turned off.The only issue is that the two parts need to be close and the ringer devise cannot securely stick to a door molding that has groves. I had to install upside down so that the ringer is on the door and the small device is at a small angle on the door frame. They are a nice add on to security for a low cost

Had to buy these for a rental property with a pool. Easy install and set up, only took a few minutes. Really loud and will certainly be heard if someone opens a window. Adhesive tape is strong, I don't imagine that these will be coming off easily!

Work well on doors and windows.

Very good and loud

cheep