Davis/VantagePro.pm 

package Davis::VantagePro;

use strict;
use warnings;

use Davis qw( Int DavisDate DavisTime DavisTimeStamp Pressure Temperature Direction ExtraTemps ExtraBytes);
use Carp;
use Exporter 'import';
our @ISA = qw(Exporter Davis);
our @EXPORT = qw( );

• Use imports or inheritance - not both