Good finition, good security, does the job.
Only thing is the 4 symbols for armed / disarmed / half-armed / panic : they are not explicit/logic at all ... I can't say what does a button by viewing it ( double circle ?? simple circle ? simple circle with a hole ?)
Only thing is the 4 symbols for armed / disarmed / half-armed / panic : they are not explicit/logic at all ... I can't say what does a button by viewing it ( double circle ?? simple circle ? simple circle with a hole ?)