Honeywell S464G1007 (BG-12LX) Key?

I have a couple of Honeywell S464G1007’s, which are essentially BG-12LX’s rebranded by Honeywell. However, I have no clue what key is supposed to open them. I have tried Fire-Lite, Notifier, Silent Knight, and FCI keys, and none of them open it, let alone even fit into the lock. If somebody knows what key I need to use to open this pull, please let me know.



Note that I received one of the pulls unlocked, which is how I was able to get the inside view.



[thumb]http://ujf.me/d?b=4&f=1365118838.jpg[/thumb]



[thumb]http://ujf.me/d?b=4&f=1365186817.jpg[/thumb]

I believe they would use the same key as the DeltaNet FS90 panel. Unfortunately, I’ve never seen any of those keys turn up on eBay.