Features: 1) Optional 3-6 digits setting 2) Code appearance on screen or not 3) Mechanical override key 4) Low battery announcement and low energy consumption 5) Specially designed space for lap-top computer 6) Keypad auto lock after consecutive 4 wrong codes or cards 7) 100-time opening records printable 8) Offering CEU (computerized emergency unit), which has multifold Functions: A) As the electronic override key B) Read and export safe's last 100 times door opening records C) As the emergency power if the safe's batteries were run out D) Support any kind of credit cards issued by banks all over The world Certificate: CE,RoHS Model Dimension Size: W410 X H150 X D350 mm