1. Working voltage: DC12V 2. working current: Less than 100 mA 3. user capacity:15000 4. Heavy volume:80 g 5. Ambient temperature:-20℃ to 60℃<br><br>Card read distance:1-10cm Set the card: Step 1: power off, connect S1 jumper cap 2, 3, side, back to electricity, three nights after the green light flash. Step 2: brush two consecutive blank card (the first one to increase the card, the second delete card), the red light flashing, continuous short at this time. Step 3: power off, reconnect the jumper cap 1, 2, and finally to electricity, card increase. Add or Del users: Add user: in standby mode, brush "add card", then brush to add user card in a row, then brush "add card" to exit Delete users: in standby mode, brush "Del card", then brush to remove user card in a row, then brush "Del card" to exit Delete all user: in standby mode, brush "Del card", then brush "add card", then brush "Del card" to exit. Due to different product batches, the appearance may be different, which does not affect use. Type:13.56Mhz IC Version Colour:As Shown Material:PC+Metal<br><br>Package Contents: 1 * Access Control module Kit<br><br>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.