Product Features: Simultaneous AC and DC voltage readings Chart Mode provides graphic documentation of HV drift, ramp time, overshoot and sag Dual inputs allows Differential or Phaseto-Phase voltage measurement High speed DSP provides up to 60 filtered readings per second True RMS AC measurement from 0.01Hz to 600Hzcovering VLF to aviation frequencies AC noise rejection 78dBfor rock solid, six digit DC Measurements Optional battery pack goes up to 11 hours between charges G Serieshigh input impedance probes for electrostatic applications CE mark Certified to EN61010 Available ISO 17025 accredited calibration Three year extended warranty (one year standard warranty)