1.Compatible with voltages in the range of DC3.5V-15V;2.Three control modes can be switched: jog mode, self-locking mode, and ignition mode;3.In jog mode, the output time can be adjusted, and the output can be up to 15 minutes;4.It has the function of switching between normally open and normally closed output modes;5.The s4 storage capacity is 300 ;Type:fingerprint control boardMultifunctional fingerprint identification electric lock control module;multiple control modes to meet your needs; plug-in connection, convenient installation; suitable for DIY modification, can be used for access control, car control , Electrical control, industrial control and other occasions.Can be connected to the exit button;Three control modes:Inching mode:turn on after fingerprint recognition; automatically turn off after releasing the finger and reaching the set delay time.Self-locking mode:turn on after recognizing the fingerprint; after releasing the finger, it will be disconnected immediately after re-identifying the fingerprint.Ignition mode:keep the fingerprint recognition unreleased; it will keep on all the time, and it will disconnect immediately after releasing the fingerfingerprint module:s4storage capacity:300 Colour:As ShownMaterial:plastic+metalPackage Contents:1 * Control board + shell1 * fingerprint moduleOnly the above package content, other products are not included.Note: Light reflection 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.