ZKTeco K40 Pro Time & Attendance & Access Control Terminal | k40The ZKTeco K40 Pro is a versatile time attendance and access control terminal that combines reliable biometric security with ease of use. Featuring a 2.8-inch TFT display, this unit supports fingerprint recognition, USB and TCP/IP connectivity, and interfaces for electric locks and exit buttons. Its built for small-to-mid sized businesses that want to manage attendance and control access in one device.Key Features & Specs:Time attendance + simple access control in one unit2.8-inch TFT color screen displayFingerprint capacity with user storage supportCommunication options: TCP/IP, USB hostInterfaces for third-party electric lock and exit buttonBuilt-in backup battery for temporary power outage supportStandard functionalities: work codes, self-service query, automatic status switching, scheduled-bell, T9 input, DST support