Description: Classical Appearance with useful function Professional Design and Quality for Home and Office High Security Working voltage: DC 12V RFID Card Capacity:500 cards,a 'Personal PIN' goes alone with each card Lock relay time:3 seconds Card read distance:5-50 mm RF card type: EM or EM compatible card Working temperature: -10~70 C Door Bell Option Door Open options (admin user selectable): Card (Key Tag) & Password/ Card (Key Tag) Only/ Password Only Dimension: 11.8cm*11.8cm*2.3cm( approx) Color:as the picture show Package includes: RFID Proximity Door Control Unit*1 10 Keys - Optional 10 Cards - Optional Waterproof Cover - Optional English User manual*1 1 pack screw