[ { "chart_title": "Pressure",
    "yaxis_label": "PSI",
    "tag": "Pressure",
    "low": 0,
    "high": 100,
    "plot_color": { "r": 0.0, "g": 0.4, "b": 0.8 },
    "init_visibility" : true },

  { "chart_title": "Temperature",
    "yaxis_label": "C",
    "tag": "Temperature",
    "low": 0,
    "high": 100,
    "plot_color": { "r": 0.4, "g": 0.8, "b": 0.0 },
    "init_visibility" : true },
  
  { "chart_title": "Voltage",
    "yaxis_label": "V",
    "tag": "Voltage",
    "low": 0,
    "high": 500,
    "plot_color": { "r":0.5, "g":0.0, "b":0.65 },
    "init_visibility" : false },

   { "chart_title": "Current",
     "yaxis_label": "Amp",
     "tag": "Amps",
     "low": 0,
     "high": 50,
     "plot_color": { "r":0.65, "g":0.0, "b":0.35 },
     "init_visibility" : true }
]