Add Zigbee2Mqtt device

Please describe exactly your current setup, because it’s still not clear to me whether this relates to openHAB at all.

Hardware, software, add-ons, bindings, configurations etc.

I am hosting latest release of openHAB on a Raspberry Pi. I have the Nortek USB stick with Zigbee and Zwave connection. I have 3 contact sensors, two are normal zigbee and the other is a zigbee2mqtt. I am trying to find a system that will alert me when a sensor basically goes missing. Currently, the two zigbee sensors die or sometimes lose signal, I want a notification anytime any of my sensors lose contact with the hub.

What do you mean by this? What makes the sensor “zigbee2mqtt”?

I’m fairly sure you can do this with rules already, with your existing system. What have you tried so far?

Yeah you can detect when a thing goes offline.

@Nexollo
The choice is yours. I recomend using the openHAB binding but ultimatly it is your choice.

Do you want to use mqtt or binding?

I got the Aqara Contact sensor, with the zigbee connection it only gives a switch, but I think with the mqtt connection I get contact, battery, and link quality for the sensor.

Does it take a while though or is it fairly quick? Since the sensors are idle until contact change or a big temperature change, it doesn’t notice while they are gone.

Are either able to work with the Nortek USB, for the mqtt or binding option?

You set the timout value.

I am not sure if the stick will work with both.

Try the hardware you have with the binding first

When you say use the hardware and binding, do you mean the Zigbee2Mqtt sensor and the Mqtt binding? Because I tried following your instructions but I can’t get Zigbee2Mqtt to start

No you have a Nortek USB stick - Hardware
Use the openHAB Zigbee Binding
https://www.openhab.org/addons/bindings/zigbee/