Multifunctional fingerprint identification electric lock control voltageMultiple control modes to meet your various needsPlug-in connection, convenient installationSuitable for DIY user modification, can be used for access control, car control , Electrical control, industrial control and other occasions.Mode selection: [factory default is jog output mode]When the circuit board is powered on, after pressing the "set button" on the circuit board, the blue indicator light on the circuit board will flash, and the number of flashes represents different relay output modes. After pressing the button again, the number of flashes will cycle from 1 to 2 to 3.The blue light flashes once: it represents the relay self-locking output. The blue light flashes twice: represents the relay jog output. The blue light flashes for three seconds: it represents the relay ignition output. (Suitable for car and motorcycle ignition)color:As shownMaterial:PC+MetalPackage Contents:1 x fingerprint control board(B)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.