'Initialize a KNX Float Sensor.'

def __init__(self, hass, config):

    KNXGroupAddress.__init__(self, hass, config)
    device_type = config.config.get(CONF_TYPE)
    sensor_config = FIXED_SETTINGS_MAP.get(device_type)
    if (not sensor_config):
        raise NotImplementedError()
    address_type = sensor_config.get('address_type')
    if (address_type == KNXAddressType.FLOAT):
        self.convert = convert_float
    elif (address_type == KNXAddressType.PERCENT):
        self.convert = convert_percent
    else:
        raise NotImplementedError()
    self._unit_of_measurement = sensor_config.get('unit')
    default_min = float(sensor_config.get('default_minimum'))
    default_max = float(sensor_config.get('default_maximum'))
    self._minimum_value = config.config.get(CONF_MINIMUM, default_min)
    self._maximum_value = config.config.get(CONF_MAXIMUM, default_max)
    _LOGGER.debug('%s:    configured    additional    settings:    unit=%s,    min=%f,    max=%f,    type=%s', self.name, self._unit_of_measurement, self._minimum_value, self._maximum_value, str(address_type))
    self._value = None
