{"title":"Mini 3-wire Volt Meter (0 - 99.9VDC)","handle":"mini-3-wire-volt-meter-0-99-9vdc","url":"/products/mini-3-wire-volt-meter-0-99-9vdc","description":"A compact 3-wire voltage meter with a vivid green 3-digit 7-segment display. Reads 0–99.9VDC with 0.1V precision, making it perfect for monitoring battery levels, power supplies, and electronic projects. Mounting tabs allow easy attachment to enclosures or panels.\n\nThe 3-wire design separates power from measurement — two wires power the display (4.5–28VDC) while the third wire connects to the voltage you want to measure. The built-in microcontroller reads the voltage against a stable reference and draws only 3–4mA.\n\nKey Features\n\n\nWide Measurement Range – 0V to 99.9VDC\n\n0.1V Precision – 3-digit 7-segment green LED display\n\n3-Wire Design – Separate power and measurement connections\n\nLow Power Draw – Only 3–4mA\n\nMounting Tabs – Easy panel or enclosure mounting\n\n\nSpecifications\n\n\nMeasurement Range: 0–99.9VDC\n\nResolution: 0.1V\n\nSupply Voltage: 4.5–28VDC\n\nCurrent Draw: 3–4mA\n\nDisplay: 3-digit 7-segment (green LED)\n\n\nWiring\n\n\nRed wire: Positive power supply (4.5–28VDC)\n\nBrown/Black wire: Common ground\n\nOrange/White wire: Voltage measurement input\n\n\nIdeal For\n\nBattery voltage monitoring\nPower supply readouts\nBreadboard and enclosure projects\nRC hobby battery tracking\n\n\nPackage Contents\n\n1× Mini 3-Wire Volt Meter (0–99.9VDC, green display)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":13266,"title":"Default Title","sku":"AF-705","price":15.5,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}