The ZKTeco K40 is a popular biometric time and attendance machine designed for small to medium-sized businesses. It tracks employee work hours using fingerprint scanning or ID cards, eliminating time fraud. It is highly favored for its built-in battery, which keeps the device running during power outages.
Supports up to 1,000 fingerprint templates and 1,000 ID cards (optional configuration).Stores up to 80,000 to 100,000 transaction records before requiring a data clear.Features a 2.8-inch TFT color screen with a user-friendly interface. Equipped with TCP/IP Ethernet network interface and a USB host port for manual Excel report downloads. Includes a built-in backup battery to ensure the machine functions during sudden power blackouts.Includes a basic relay interface to connect with simple third-party electric locks and exit buttons