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FCL-988M voice card lock, twist the rotary switch on the lock cover, it will keep alarming

Details of the problem:

Hello, FCL-988M voice card lock, twisting the rotary switch on the lock cover will continuously alarm, what is the problem?

Expert answer:

Hello, please refer to the operation method on the manual, set the alarm time to 0 and turn off the alarm function. If you still don’t understand, please contact us. For the relevant FCL-988M manual, please download it from our website: www.gzfcard.com, and click "Related Download" --- "Product Description".

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