Acdc pro clamp-on power meter features:10000 count active backlit digital display60 segment analog bar graphtrue rms measurements on ac & ac+dc modeauto acdc 1000 amps capability and selectionauto acdc 1000 volts capability and selectionsmart data hold , minmax functionpeak holdinrush currentdca zeroinglow pass filter for pwm waveformfrequency counterpower and power factor measurementtotal harmonics distortion and harmonics , 1 to 25phase rotation indicationcapacitance capabilitytemperature (k type bead thermocouple included)continuity beeperupto to 42mm dia (1000mcm) conductortorch lightening when clampingvolt sense (none contact voltage)auto power off4 feet drop proofdeluxe carrying caseconvenient battery doorcat. Iv 600v cat. Iii 1000v safety standardoverload & low battery indication