Comark Multi-link Box (N2000BOX)The Comark N2000 Multi link Box is designed especially for Comark N2012 Data Loggers and allows you to connect up to four external sensors to your Comark Diligence EV device. Features Include: Multi link: Providing Four 6 Pin Lumberg Sockets Designed specifically for teh Comark N2012 Data Logger 250mm Lead 6 Months Warranty *Note: The four external probes can only be connected if the internal sensor of the Comark N2012 Data Logger is disconnected.