librenms-librenms/includes/discovery/sensors/load/apc.inc.php

<?php

echo 'APC Load ';

$oid_array = array(
    array(
        'HighPrecOid' => 'upsHighPrecOutputLoad',
        'AdvOid'      => 'upsAdvOutputLoad',
        'type'        => 'apc',
        'index'       => 0,
        'descr'       => 'Load',
        'divisor'     => 10,
        'mib'         => '+PowerNet-MIB',
    ),
);

foreach ($oid_array as $item) {
    $oids = snmp_get($device, $item['HighPrecOid'].'.'.$item['index'], '-OsqnU', $item['mib']);
    if (empty($oids)) {
        $oids        = snmp_get($device, $item['AdvOid'].'.'.$item['index'], '-OsqnU', $item['mib']);
        $current_oid = '.1.3.6.1.4.1.318.1.1.1.4.3.3';
        $current = $oids;
        $item['divisor'] = 1;
    } else {
        $current_oid = '.1.3.6.1.4.1.318.1.1.1.4.3.3';
        $value = explode(" ", $oids);
        $current = $value[1]/$item['divisor'];
    }

    if (!empty($oids)) {
        d_echo($oids);

        $oids = trim($oids);
        if ($oids) {
            echo $item['type'].' '.$item['mib'].' UPS';
        }

        discover_sensor($valid['sensor'], 'load', $device, $current_oid.'.'.$item['index'], $current_oid.'.'.$item['index'], $item['type'], $item['descr'], $item['divisor'], 1, null, null, null, null, $current);
    }
}//end foreach