12-11-2013, 08:39 PM
If it's the black plug on the front you mean,its not a tamper proof seal that remains intact to say it hasn't been opened/messed with,its supposed to be a one way screw that you cant undo so if it has been undone gently without marking the plastic you wouldn't really be able to tell if its been turned up.
Best bet is to just turn it up,that way you know its been messed with.
Best bet is to just turn it up,that way you know its been messed with.