Water-ProofIP65: Auto Range: Work Light: Low Battery Indication: Short circuit two leads,LED and beeper off when the bettery is low LCD AC/DC Voltage Display: 24V~ 690V(3%+8) Phase Rotation Test:Operating Voltage: 0V~690VFrequency: 50Hz~ 60HzSingle Lead(L2)Voltage Detection:Operating Voltage: 100V~690VFrequency: 50Hz~ 400HzContinuity Test:Resistance: 0~400KBeeper and LED light IndicatorPolarity Detection: Positive & Negative