[Observium] Exclusion in "poller.php -h all"

Hi, I have a question about the "poller.php -h all" added in crontab, to run every 5 minutes.

I need to install a cronjob for son specific appliances, to run every 10 minutes:

*/10 * * * * /app/observium/poller.php -h 48 */10 * * * * /app/observium/poller.php -h 49 */10 * * * * /app/observium/poller.php -h 50

Is it possible to exclude this specific appliances from the "-h all" option?

Thank you.