AV protocol device have a feature where they can be tested using a magnet. However, if the devices are programmed to use a non-latching input action (e.g. general alarm, fire evacuate, pre-alarm), they will not reset after the test until a panel re-boot is carried out.
Now, when the “Reset” button is pressed on the panel, all devices will reset and come out of test, irrespective of input action.
Please refer to “680-169-01A MxPro 5 Argus Vega” for further information on magnet testing.