Welcome to the store! 1. Working Voltage: DC12V 2. Working Current: Less than 100mA 3. User Capacity: 15000 4. Weight: 80g 5. Ambient Temperature: -20℃ to 60℃ Card Reading Distance: 1-10cm Set Card: Step 1: Turn off the power, connect the S1 jumper cap 2, 3 side, back to power, three nights after the green light flashes. Step 2: Brush two consecutive blank cards (the first to add card, the second to remove card), the red light flashes, continuous card at this time. Step 3: Turn off the power, reconnect the jumper cap 1, 2 and finally to power, card increase. Add or Remove Users: Add Users: Brush "add card" in standby mode, then brush to add user cards in a row, then brush "add card" to exit. Remove Users: Brush "Del-card" in standby mode, then brush to remove user cards in a row, then brush "Del-card" to exit. Remove All Users: Brush "Del-card" in standby mode, then brush "add card", then brush "Del-card" to exit. Due to different product batches, the appearance may be different, which does not affect the use. Type: 125KHZ RFID Version Color: As shown Material: PC+Metal Package Contents: 1 * Access Control Module Kit Only the above package content, other products are not included. Note: Light reflection and different screens may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!