The 502 is one of the most simple of the 5 in 1 packages, and offers no external collection. You have 2 paths for data collection:Get an additional Display WITH the PC connect option. (This requires that the PC be on 24/7 )orGet the new Access internet module (connects to your WIRED Ethernet router)Do note: this forum is showing that some of these units are flaky (I seem to have a good one).Date is sent to Acurite and must be viewed using the MyAcurite web page. Older Data can be downloaded. Data is NOT retained indefinitely. Be sure to routinely collect your data Data from the Access can also be shared with Wunderground . Your 5 in 1 sensor is compatible with either path. The Access offers support for 6 OTHER COMPATIBLE sensors.