... Ethernet ports. · Built-in USB port allows for manual data transfer when network isn't available · Multi Language Support · Built- ... Functions: SMS, Workcode, DLST, Scheduled-bell, Self-Service Query, Automatic Status Switch, backup battery, anti-pass back. · Optional Functions: ID card, ... user ID, WIFI, GPRS · Display: 3 inches TFT Screen · Power Supply: 12V DC, 1.5A/3A · Operating Temperature: 0°C ...