About this item

• 3 colors indicator light: red for low voltage, yellow for password error alarm, green for lock opening.
• Support garbled code input, add random code before/ after true code.
• Independent and open dual working modes can be switched at ease, perfect for home and public places.
• With external usb power supply interface to cope with power outage situation.
• Password protection, temporarily lock the keypad for 5 minutes after 3 consecutive wrong inputs.