LED DigitalDC VoltageMeter, 3-1/2 Digit, Red DisplayFeatures:200 mV DC Full Scale Input SensitivityDisplay Color: RedDecimal Point Selectable0.56″ Figure HeightAutomatic Polarity IndicationHigh Input Impedance >100 Meg OhmEasy Bezel MountingMeter Size: 72mm x 36mm x ~ 25.4mm DepthSpecifications:Maximum Input: 199.9 mV DCMaximum Display: 1999 Counts (3-1/2 Digits) with Automatic Polarity IndicationIndication Method: LED DisplayMeasuring Method: Dual-Slope Integration A-D ConverterSystemReading Time Rate: 2-3 Readings Per SecondInput Impedance: > 100 Meg OhmDecimal Point: Selectable with Wire JumperSupply Voltage: 7-11 Volt DCOperation:Input Range: 200 mV, 20 Volt, 200 Volt, 500 Volt DCAll Need Voltage Dividers and Decimal Point Wire Jumpers (NOT Included)See Included Instruction Sheet