M12 Value Line Field Installable Connectors TE Connectivity's (TE) M12 Value Line Field Installable Connectors provides a solution for sensor connections that safely and reliably ensure communication in industrial environments. The connectors offer a solution for sensor connection in industrial machinery and factory automation. These connectors are also used outside of their traditional industries where a compact reliable connection system with environmental protection is required. The M12 Value Line Connector system offers a solution that is time-saving, error-free, and without the use of tools.