Hi,
Bug only occurs in combination with blueprint lab (MOD: Editor Extension)!
If I'm in the Lab and mark one of the detectors with the deconstruction planner, it gets immediately removed.
a few seconds later I get a Mod Crash with the following error:
Error while running event pollution-detector::on_tick(ID 0)
LuaEntity API call when LuaEntity was invalid
stack traceback:
[C]: in function 'index'
__pollution-detector/control.lua:58 in function
<pollution-detector/control.lua:54>

If i remove the detector with a right click (mine it) there is no error.
I guess the removing via planner skips the "clean up" of detectors that are updated, which is causing the script to fail to update an detector that is no longer existing.