product has wiegand interface, where it sends data only when known fingerprint is read. if you read any fingerprint, you get no data. user manual is a trash, not helpfull at all
I didn't get my product. The product is kept hold at Sellers local Post office. There was a security suspicion in sellers local post office that seller didn't solve. Seller behaved carelessly with me. He also didn't agree to refund. Then I had to open dispute and AliExpress offered me refund.