Switching the sensor to "door" doesn't help... the sensors
are not being tripped, they appear to be randomly losing
contact with the console or are otherwise malfunctioning
since the "trouble alert" keeps appearing. There is no way
to aleviate the trouble alert unless I reset the entire
system, but then the "trouble alert" will reappear within
minutes... always afflicting a random set of door/window
sensors, but never the motion sensors. Otherwise, the
sensor behave normally, flashing with the test light and
chiming in "run 2" mode. However, with the sensors in
"trouble alert" mode, I cannot arm the system unless those
sensors are bypassed. I have requested an RMA and have
yet to receive a response. These door/window sensors are
very unreliable. I have requested to exchange them for the
motion sensors which are working fine for me. No
response via email, online "chat" just provides me with
email and phone number. Very dissapointed with support
and product quality so far. Be warned.