I purchased the GSM dialer from Alarmsellout a month ago, connected it to my ademco alarm, and it works great! I don't see why it wouldn't work on your other alarm. I tried Secbo's GSM dialer originally and don't recommend it. Although their outer appearance looks the same, Alarmsellout's dialer supports more frequencies and more importantly, it has a built-in backup battery. The secbo dialer didn't come with a backup battery at all which means if the power goes out, my alarm can't even dial out. I highly recommend paying a little more for the better product.