This device
I have tried many times.
Many different ways.
But I can’t pair it with ST Hub.
Help me!
Remove the battery. Add a Thing in the ST app. With the unit near the hub, hold in the test button and insert the battery.
1 Like
can not 
Well, it would help if you purchased the correct device.
In the first pic above, your detector has the words “with voice” printed on it. Unless there’s a new version, the zcombo doesn’t have voice alerts.
However, first alert does manufacture other models of smoke and CO detectors with a wireless interconnect capability that uses a proprietary protocol, not z-wave. And those detectors do have voice alerts.
So are you sure you purchased a first alert device with a z-wave radio in it? Obviously it won’t pair with ST if it doesn’t have that.
What’s the model # of the device in the picture?
1 Like
I believe this is the model you need:
Brian
Another Link:
Brian
I buy here (https://www.amazon.com/gp/product/B0064S9IQ4/ref=s9_dcacsd_dcoop_bw_c_x_3_w?th=1)
Can you check for me, thanks!
You bought the wrong product. No z-wave radio in that one, as I suspected.
1 Like
Thanks you.
Before, I bought a z-wave product and saved this link, but it is wrong. Unfortunate 
I recommend you look at the model # and specs on a product page before you purchase it.
1 Like
Thanks you!
I just purchased the Zcombo unit from Lowes yesterday and it paired easily. The package will say ZCOMBO on the bottom right of the package.
Brian