If you report an opinion of the subject's market rent, it is an appraisal. If all you do is report area rentals, it's a rent survey. If it's an appraisal, the report needs to comply with all of the appropriate parts of SR 2-2. That includes stating the report format, type of value, definition of value, source of the definition, sales history of the subject, exposure time, Highest and Best Use, etc. The level of detail will depend on whether it's an Appraisal Report or a Restricted Appraisal Report.
I would include photos and a location map in the report whether it ends up beng a rent survey or an appraisal.