With most model APs on the market. APs that have external connections have a wider range of operating temperature than similar models with internal antennas. (More inside components more heat ...)   On the Meraki product datasheets for most (E) model APs, the operating temperature is the same as the (I) model counterparts.  example : https://meraki.cisco.com/lib/pdf/meraki_datasheet_MR53E.pdf                 https://meraki.cisco.com/product-collateral/mr53-datasheet/?file  This appears to be an error. Does anyone know the actual operating temperature?   ... View more