1. Compatible with DC12V-24V voltage range; 2. Three verification methods: fingerprint, IC card, mobile phone NFC 3. Three control modes can be switched: jog mode, self-locking mode, ignition mode; 4. In the jog mode, the output time can be adjusted, and the output can be up to 15 minutes; 5. With relay normally open and normally closed output control. 6. IC card/NFC sensing distance: greater than equal 25mm 7. 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 finger. type:IC+NFC/IC+NFC+S4 Colour:black Material:plastic+metal Package Contents: 1 x Control board with shell 1 x induction antenna 1 x management card 3 x user card / 1 x Control board with shell 1 x induction antenna 1 x management card 3 x user card 1 x S4 fingerprint identification module Only 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.