Question: We have a card access system and the user cannot hear when the electric strike releases. What can we do to help them? Answer: Based on that description, you have a DC Strike. You could change out the strike and use an AC powered strike that will buzz when released. Another alternative is to add an audio option on electric strike release like a buzzer or a LED light to your existing DC system.   Do you have a question, or need a quote? Contact your local IDN Branch, or ask the Electronic Access Ace through our website. © Copyright IDN, Inc.