what does this mean?

[swooper220]

If I have my SC1200 armed and there is a zone flashing, I assume that means that the zone flashing is not functioning properly. I pressed the  test button and the zone stopped flashing. ummmm......WHY

[dave w]

According to the manual, the console may not have received the regular check-in from that remote sensor. Try new batteries.

[Brian H]

Is there any other message on the SC1200s LCD display?
Was it flashing after you tried to Arm it?
As dave w pointed out. The Sensor for that zone didn't check in with in four hours or you tried to arm the console and one of the Zones was Open.

[swooper220]

no message about any problems. just read "armed way". in other words, i armed the system before going to bed, woke up and the #10 zone was blinking but system was still armed. i pressed the test button on the #10 door monitor and the flashing stopped and the system stayed armed. not really worried just wondering if this meant anything that i could correct. one zone not working while armed is like a game of russian roulette. gonne try batteries, i guess even new batteries could be bad. thanks everyone for all your help