These things would likely be as rock solid and reliable as their Visonic Power Series alarm system compatible units if we could get the Zigbee driver sorted out. Can you say loooonnnnngggg battery life 
Also known as: Xfinity Home MP-840 K9-85 SMA VISONIC 2.4 GHz ZigBee
Mr. @mike.maxwell what would you need to look into this if you could be persuaded to?
