Instructions for control board: 1. SET Button: 1.1 Press SET button shortly,system in register state and indicator light flash fast, press two times for each fingerprint, fingerprint register successful when hearing music.Fingerprint can be registered continuously when system in register state; if no need adding fingerprint more, waiting 8 seconds.(Fingerprint capacity is 100 pieces when press SET button,the registered fingerprints are stored in database 01)1.2 When back to factory default, press SET button until hear "Di" long beep and music,means initialization operation successful2. Remote Control: 2.1 Red indictor lighted means in programming stated, music means operation successful, default password: ,password length: 6numbers.2.2 Change password: Press * password * 1 * new password * new password. 2.3 Register fingerprint: Press * password * 2 * DD , DD from 00 to 02(00, 01 and 02 refer tothree different fingerprint databases), each database can store fingerprint 100 pieces; Exit fingerprint in register state when press * button or waiting for 10s.2.4. Empty fingerprint: Press * password * 3 * password 2.5. Control Work Mode:Press * password * 4 * 00 Fingerprint module Contact standby function ONPress * password * 4 * 01 Fingerprint module Contact standby function OFF(Normally on Mode)2.6. Delay time for closing relay: Press * password * 5 * ; from 00 to 20, means the closing time for relay(from 0.5s to 20s), e.g.: 00 means 0.5s, 20 means 20s; Default time is 5s.2.7. Delete fingerprint: Press * password * 6 * DD , DD from 00 to 02 (00, 01 and 02 refer tothree different fingerprint databases).2.8. PasswordUsing: Press * password and relay closed, press and relay opened.3 FunctionSet:When chose 2,closing time of the relay is 5s after pass fingerprint(5s is default time, and it can be adjusted by remote control);When chose 1, relay closed when fingerprint passed, relay will be opened when removing finger.User manual for control board K216Technical parameter:Model Number: K216+R503Power supply: DC10V--30VOutput: Relay(Max. current: 10A)Standby current: 6mA(DC12V)Fingerprint capacity: 200LED Control: YESFingerprint capacity: 300 piecesColor: Silvermaterial: metalPackage Contents:1 * K216 Fingerprint Control Board1 * R503 Fingerprint ModuleOnly 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.