Fingerprint Capacity 20,000 ID Card Capacity 20,000 (Optional) Record Capacity 150,000 Display 3 .5-inch TFT Screen Communication TCP/IP, USB-host Standard Functions Work code, SMS, DST, Webserver, Scheduled-bell, Self-Service Query, Automatic Status Switch, Photo ID, Multiple Verify Mode, T9 Input, Camera, Anti-passback Access Control Interface 3rd Party Electric Lock, Door Sensor, Exit Button, Alarm, Bell Wiegand Signal Input & Output Optional Functions ID/Mifare, GPRS, 3G(WCDMA), Wi-Fi, External Printer, WDMS Software ZKTime.Net 3.0 Power Supply DC12V 3A Verification Speed ≤1 Sec. Operating Temp 0°C – 45°C Operating Humidity 20% – 80%