ITEM NAME:Mini Panelmeter Voltage Voltmeter DC 0 - 30V 20 mA Yellow Three Cables O2A7 Mini Panelmeter Voltage Voltmeter DC 0 - 30V 20 mA Yellow Three Cables O2A7 Entrance area of power supply: DC 4.5 30V You can install these mini voltage display easily. Display color: Yellow Display: Three digits Dimension: Approx. 46 x 29 x 22 mm Accuracy: 1% Measuring range: DC 0 - 30V Storage temperature: -10 °C ~ + 65 °C Connect black to the common negative pole, red with positive pole of the power supply, white with positive polarity.
