For instantaneous system monitoring, the ISIS inSIGHT diagnostic module is now standard with both the 2-Cell and 3-Cell starter kits. With it, you can ensure that your electrical system is functioning normally and that all electrical connections are intact. It comes already installed into the Mastercell input unit and you’ll instantly see the status of every power output connected to the system. This diagnostic tool displays information on a back-lit, high-intensity blue screen. The four-line, 16-character display is easy to read in all light conditions. It allows for simple and quick diagnostics and troubleshooting of the system installation. The instantaneous indications allow for quick testing of electrical functions for all inputs. Real-time monitoring of critical parameters for all cells in the system gives you continuous access to automobile electrical system status.