Heiman HS2WD-E Siren Pairing with Zigbee2mqtt and CC2531 Stick

Hi everyone, I’m reaching out to seek some guidance on pairing my Heiman HS2WD-E sirens with my Zigbee2mqtt setup using a CC2531 Stick. Despite my best efforts, I’m unable to get the sirens to connect. I’ve followed the reset procedure, and the LEDs indicate they’re ready to pair, but there’s no response in the logs or on the web frontend. Has anyone successfully paired these sirens? Any insights or recommendations would be greatly appreciated! If not, are there alternative hardware suggestions that might work better? Thanks in advance for your help!