Phmeter constructor

Phmeter({
  1. required Room room,
})

Implementation

Phmeter({required Room room})
    : super(room: room, schema: {
        "current_value": double,
        "last_calibration_time": int,
        "low_ph_warning_limit": double,
        "high_ph_warning_limit": double,
        "sensor_calibration_interval": int
      });