Working voltage: DC12V Working current: Less than 100 mA User capacity: 15000 Weight: 80 g Ambient temperature: -20°C to 60°C Card read distance: 1-10 cm Set the card: Step 1: Power off, connect S1 jumper cap to pins 2 and 3, then power on. Wait for the green light to flash three times. Step 2: Swipe two consecutive blank cards (the first card to add, the second to delete). The red light will flash continuously. Step 3: Power off, reconnect the jumper cap to pins 1 and 2, then power on to complete card setup. Add or Delete users: Add user: In standby mode, swipe the "add card", then swipe the user card to be added, then swipe the "add card" again to exit. Delete user: In standby mode, swipe the "Del card", then swipe the user card to be removed, then swipe the "Del card" again to exit. Delete all users: In standby mode, swipe the "Del card", then swipe the "add card", then swipe the "Del card" to exit. Note: Due to different product batches, the appearance may vary slightly. This does not affect functionality. Type: 125KHz RFID Version Color: As shown Material: PC + Metal Package Contents: 1 x Access Control Module Kit Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement error is +/- 1-3 cm.