Fingerprint module is activated by finger induction;The relay time can be adjusted by rotating the button;Registering is very simple, just press the SET button to register ;The product is and easy to install;Can up to 120 K202 is designed for low power consumption, the power supply is DC10-24V, the relay time can be adjusted by rotating the button, the relay time: 0.5-13 seconds.Control board description:1.SET button:Short press the SET button, the blue indicator light flashes quickly, the system enters the registration state, put your finger in the fingerprint area, fingerprint registration is successful when to music. When the system is in the registration state, you can register continuously; if you do not need to add , wait a few seconds.2. Return to factory default:Press the SET button hear a long "Di" beep and music, indicating that the initialization operation successful.3. Set the relay time:Turn K2 to set the closing time of the relay to 0.5 to 13 seconds. The relay is a contact output, a switching signal, and no voltage output;4. Use:Press the finger, the relay closes after the fingerprint passes, and the closing time is determined by K2.Technical Parameters:P1: Power supply: DC10-24VOutput: Relay (Max current: 10A)Standby current: 15uAFingerprint capacity: 120P2: MX 1.0mm pitch 6-pin fingerprint module (can be connected to R502, R502-A, R503)P3: MX 1.25mm pitch 6-pin fingerprint module (can be connected to R300, R301T, R303, R303T, R305, R306, R307, R501)colour: silver + blackMaterial: aluminum + PCBsize: 64.4 * 25.4mmPackage Contents: 1 * K202 Fingerprint control board1 * R503 Fingerprint moduleNote:1. In the standby state, allthe indicators are off, and in the working state, the indicators are on;2. Any fingerprint can be used in the factory state, this function will be invalid after the fingerprint is registered.K202 can be used with R300, R301T, R303, R303T, R305, R306, R307, R501, R502, R502-A, R502-AW, R503 fingerprint modulesOnly 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.