Details of the problem:
Hello, our factory uses your S02E access controller, we are in a remote place, very quiet at night, the guard didn't care, and the thief opened the door and sneaked in without knowing it. I heard that this product has an alarm function. Please provide the operation method, thank you!
Expert answer:
Hello, thank you for using our company's products, you can operate through the following video tutorials we provide you, please watch the video carefully:
