Screw mount for AVM DECT 350

Description:
The AVM DECT 350 is a practical door and window contact, but the supplied adhesive strips quickly reach their limits – especially on rough, untreated wood. This was exactly the problem I had with my own project: I wanted to secure my garden shed, but the adhesive pads simply didn't hold reliably.

After several failed attempts to attach the parts with additional adhesive tape or wood glue, it was clear: a robust screw mount was needed.

So I developed this custom-fit mount, which is perfect for uneven or difficult surfaces. It can be quickly and securely attached with two simple wood screws. This way, the DECT 350 stays firmly in place – whether on a garden shed, a garage door, or an old wooden window frame.

Features:

• Perfectly fitting for the AVM DECT 350
• Secure hold even on rough wood
• Easily mountable with two screws
• No gluing, no slipping, no loose parts
• Ideal for garden sheds, garages, basement windows, or front doors
• Removable upwards to change batteries.

Background Story:
My garden shed is built from recycled wood – beautifully rustic, but a challenge when it comes to technology. I wanted to install the DECT 350 for monitoring, but after a few days, the adhesive strips kept coming loose.
This was not only frustrating but also unsafe.
So I got to work with the 3D printer, designed several prototypes, and tested them directly on site.
Today, the sensor is rock solid – and I can sleep more peacefully because the door is now reliably monitored.

I printed the model in PETG. in white color, so it matches the sensor.