if (is_numeric($current)) {
        discover_sensor($valid['sensor'], 'state', $device, $cur_oid, $state_name . '.' . $index, $state_name, $state_name, 1, 1, null, null, null, null, $current);
        create_sensor_to_state_index($device, $state_name, $state_name . '.' . $index);
    }