By Mike DeNardo

PHILADELPHIA (CBS) – Some Philadelphia schools are getting new security intercoms, thanks to safety professionals holding a convention here next week.

Staffers at seven Philadelphia elementary schools now can see who’s waiting at the door to be buzzed in.

ASIS, the group founded as the American Society for Industrial Security, has donated $20,000 to pay for new video security intercoms.

Penn Alexander principal Sheila Sydnor appreciates the one that was  just installed at her school.

“Especially during the times when we open school and it’s dark,” she said. ” And we can actually see our visitors at the door, see our students at the door.”

The money will also buy more security cameras for a half dozen other schools.

ASIS made the gift in advance of their meeting next week at the Convention Center.