Can I send pictures? Omnilert Support April 01, 2020 20:59 Updated Follow No. Omnilert SE sends plain-text to SMS (text messaging) and email. Related articles Can I send messages from my mobile device? I received a text message from Omnilert with a link to "omnl.io"? What is "Omnilert SE"? Why are text messages limited to 160 characters? Comments 0 comments Please sign in to leave a comment.