"FLIR CM83 Power Clamp Meter FeaturesVFD ModeAccurately analyze non-sinusoidal waveforms and noisy signals in VFD-controlled equipment. Harmonics ModeLocate noise from different electrical draws to realign harmonics and reduce electro-mechanical equipment stress. Phase RotationAnalyze three-phase systems to measure power draw and verify if power is evenly balanced. Inrush CurrentMeasure hard and soft start-up inrush current spikes while equipment is ramping up. METERLiNK CompatibilityEmbed electrical measurements into thermal images captured by METERLiNK-enabled FLIR IR cameras for easier documentation. Power Factor and Active PowerMonitor power quality improvements, such as start-up realignments on three-phase equipment. Bluetooth ConnectivityConnect to Android devices for remote diagnostics in hard-to-reach or hazardous areas. Also, upload data without the need for special cords. Bright Dual-LED WorklightsMake your work safer\/easier in poorly lit locations - especially useful when the lights are out or obstacles block your inspection targets. Rugged & Shock-ResistantDouble-molded case design and extra thick rubber on the corners absorbs shock to enhance job-site reliability and long-haul durability."