ZKTeco Time Attendance Terminal K40

The ZKTeco K40 is a fingerprint time-attendance terminal with a 2.8-inch TFT screen and a simple access-control interface. It is relevant to an employee clocking project that needs local identification, stored attendance events and a straightforward connection to a computer. The East Africa manufacturer leaflet specifies 3,000 fingerprints and 100,000 transactions. Card recognition is an optional configuration, so a card-capacity figure should not be read as evidence that every supplied unit contains the required reader.

TCP/IP networking and USB host are listed communication methods. Standard functions include work codes, automatic status switching, self-service queries, scheduled bells and a 14-digit user ID. These provide tools for organising clocking activity, while the organisation's schedules and reporting rules still need to be configured. The documented backup battery provides a power-continuity feature, without establishing a guaranteed runtime for every installation or battery condition.

The leaflet describes self-service reporting alongside its attendance functions. Select the reporting workflow before deployment: collecting punches at the terminal and interpreting them in an attendance report are different stages. A third-party electric lock and exit button can connect through the simple access interface, but those components are separate project items. K40 requires a 12V, 1.5A DC supply and a mounting environment within its stated 0–45°C operating range.