Looking for good z-wave window multi sensor (contact and vibrations at least) for a large home. Details inside.

I bought an almost 8000 square foot house with an existing security system that has enough problems that I’ve decided to just remove and replace it. Most of the area is ground level but about 1/4 of the square footage is a walk out basement, to give an idea of the layout. The floor plan is roughly T-shaped. It was built in the 60s and has double layer drywall everywhere.

I have installed a ubiquiti UniFi network and I have excellent WiFi coverage everywhere in the house on both 2.4ghz and 5ghz in case that is relevant. I am installing ubiquiti bullet cameras. I have considered turning off the 2.4ghz band but I’d rather not as some devices still only use that and it works better outside around the yard.

I have been hoping to use contact and vibration multi sensors on windows and sliders to eliminate the need for glass breaks.

Given the area I need to cover and that my wife would like me to add some other smart devices here and there (locks, thermostats, switches, etc), I was looking at mostly z-wave plus devices. I’d also like to integrate professional monitoring.

So here’s my question for you guys. Given my scenario, is there a z-wave multi sensor that fits what I’m trying to do?

The Samsung SmartThings Multipurpose Sensor (https://www.smartthings.com/products/smartthings-multipurpose-sensor) looks to be close to what I want but it’s Zigbee. It’d be great if they made a z-wave version of this sensor.

I was looking to avoid Zigbee because it operates in the 2.4 GHz band and I was afraid it could have range problems or interference issues with my UniFi network. Am I overthinking and Zigbee would work fine?

Thanks for your help!

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