The landlord, Thomas Daley, faces invasion of privacy, wiretapping, and other related charges.
The Montgomery Count District Attorney's Office and Norristown Police say the video surveillance system was elaborate.
Daley allegedly had the video fed to his Phoenixville home.
Authorties say Daley had the system in place for several years, initially because of problems at the rental property.
Then, police say, he began using it for voyeuristic purposes.
The tenant who found the allegedly hidden camera didn't want to discuss the matter.
We went to Daley's Phoenixville home but no on answered.
Property records reveal Daley has other rental properties. He apparently owns several units in a Norristown Apartment complex.
Several tenants there wouldn't go on camera but tell Action News they're disturbed by the allegations.
Some say he was a great landlord, while others have had concerns and say they're not surprised by the charges.
Those tenants were frantically searching their apartments to see if they had any hidden cameras, but so far none have been found.
Norristown police say this investigation is still underway.
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