@classmethod
def gauge(cls, item, value):
    """
        Set gauge item to specified float value
        :param item: item name
        :type item: str,unicode
        :param value: value
        :type value: float
        :return True if success, False otherwise
        :rtype bool
        """
    if not cls._is_clean_item(item):
        return False
    cls.QUEUE_GAUGE.put((item, value))
    return True
