What's included: Test leads (black, red, and Blue) with large alligator clips, soft carrying case, and one 9 V battery. Non-Contact detector clips eliminate metal contact points ensuring safety dual functions: open phase and phase sequence detection designed for checking a wider range of 3-phase power source from 75 to 1000 VAC detects frequency range from 45 to 65 Hz. LED display lights with audio indicator brightness button feature for better visibility in dimly lit areas or sunlight magnetic mounting feature.