Wombat SecurOptm KSI-1008 Built with the UPEK biometric fingerprint sensor. This sensor works seamlessly with most of the major security software applications available today. USB interface for easy plug and play. The UPEK sensor has an integrated analog-to-digital converter to digitize the sensed data and an automatic gain control (AGC) function that provides high quality fingerprint images from all types of skin, dry to moist, in a wide range of climatic conditions, even hot and humid. ESD rating to 22 KV for years of reliable performance .