CL220VP Premium Meter Electrical Test KitPremium Meter Electrical Test Kit CL220 Clamp Meter measures AC current and AC DC voltage, resistance, and continuity via test leads, and temperature with thermocouple Auto ranging TRMS meter has a backlit LCD on clamp to provide better viewing in low light and is CAT III 600V, Class 2 Double Insulated NCVT3P has dual range capabilities to detect from 12 to 1000V AC or 70 to 1000V AC for a broad variety of low voltage or standard voltage applications