Features:100% quality and Brand new.Reverse Connect Protectionsuper wide voltage rangesuper simple connectionWaterproof, dustproof and shockproof Inside the voltage meter filled with potting glue, so even if there is certain pressure water it can also work for long time ,and can fully suit for the electric vehicle on raining day , the sun day , and dust, vibration big and other bad environment The input voltage adapt to a wide range of 15-120 v, no matter be 36 v or 72 v, even 96 v electric motor car, it all can adapt, do not need to worry about it will be burned because of the high voltage , or voltage can’t normal measurement Only take two lines, red joint the positive, black joint the negative. Voltage meter has reverse connect protection circuit, also won’t burn even reverse joint Specification:Range: DC15-120VDisplay color: Blue Refresh rate: about 500mS / timesResolution: 1% +1 digitPower Supply: DC15-120V (with the input common-line)Operating temperature: -10 c ~ 65 cCurrent con