Z-Wave battery operated boorbell (or door sensor with external contact)

[sejtam]

Other than the older Fibaro door sensor, is there

a) a bottery-operated doorbell (ie, really just a zwave button with battery that can be glued/screwed/tied near the gate

or

b) a door sensor which can take a signal from an external contact and thus trigger a scene?

or another solution for a doorbell that does not require power at the
door/gate? The cheaper the better

[philchillbill]

I use the Neo Coolcam door sensor with two wires soldered in parallel over the magnetic reed switch. Works perfectly and cheaper than Fibaro.


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[hoeby]

two wires soldered in parallel over the magnetic reed switch. Works perfectly and cheaper than Fibaro.

This also works with xiaomi doorsensor.
I soldered out the reed switch. And on the 2 point where the reed switch was connected, i soldered the new wires

Just like the image (not mine, but the same idea)