Hacking Pressure Pad to work in UK (Z-wave or Zigbee)

[djtucker (David Tucker)]

Fibaro Door Window Sensor should do the job

Fibaro Door Window Sensor FGK-101 (White) : Amazon.co.uk: DIY & Tools

@djtucker

You could wire in to your doorbell switch or ringer, so effectively it can turn any switch/contact into a Zwave sensor, instead of using the magnetic reed switch built-in. I have one connected to outputs on a wired alarm system, for example. It can also take a cheap DS18B20 temp sensor about 50p from electronics suppliers, so you get temp readings too.