Lot's of us use the Visonic sensors (like MCT-100 and MCT-302) also for Status of devices.
The nice thing about these sensors is that they are reliable and have a heartbeat.
The status is send every 15 minutes regardless of status changing.
You can tweak this to 3 minutes by just not closing (disabling) the tamper switch.
So keep the tamper open and the status will be reported every 3 minutes.
Just ignore the sabatage in your software.
It could be handy for some devices to have this setting.
So the sensor can not be connected to the Visonic alarm panel otherwise you get a sabotage alarm