<p>For my practice runs I've been using a digital watch with a built in timer. Whenever I start and reset it it does a low beep, no other sounds.</p>
<p>ex:
Examiner: You may begin now.
<em>Watch beep</em></p>
<p>25 minutes later...</p>
<p>Examiner:Close books.
<em>all pencils down</em>, <em>watch beep for reset</em></p>
<p>Is this allowed? (I'm talking about the PSAT in particular, but I guess this applies to the SAT as well.)</p>