Chuango Wireless Keypad & RFID Tag Reader for Home Security Alarm System KP-700DescriptionSpecificationsShipping Punch in your code into the wireless keypad, and you can quickly arm or disarm your security alarm system. it also works with electronic locks for home or office use. The unit automatically locks the door behind you, and to re enter, simply punch in the code and hit the disarm key. Or, you could purchase RFID tags for your colleagues or family members and keep things tight and neat in your property. Power: 3 pcs of