brand new and high qualityMaterial: PlasticDisplay color: BlueSpecification:Dimensions: 40 x 25 x 23mmCutting Size: 37x20mmMeasure range: Blue (DC 3.0-30.0V)Maximum input: DC 30VPermissible Error: 1% (+ / - 1 digit)Display: Three 0.40"LED digital tubeDisplay Color: Blue (DC 3.0-30.0V)Refresh rate: about 500mSCurrent consumption: about 5-20mAOperating temperature: -10 °c ~ 65 °cVoltmeter with epoxy potting, Full waterproof design, Oil Pollution Prevention, Moistureproof, Shockproof, Dust-proofWith Reverse polarity protection ãApplication:Do not need power supply, can measure 2.5-30V directlyIf the input voltage is below 3.5V, the display brightness dimsIf the input voltage is below 2.5V,measuring inaccurate or no displayWhen measure 10V below, accurate to 0.01V,display x.xxWhen measure 10V or more,accurate to 0.1V,display xx.xSize:ãQuantity: 1 PCNote:Manual measuring, please allow 0-1cm error,thank you.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!