SD card sensor recommendations

Hello, I was wondering if I have to create an account for each one of the sensors I am using in PM project if all of the data will be downloaded onto SD cards?

Hi @ada.wilmer

Could you clarify a little bit what you’re trying to do? If you’re talking about a develop portal account, you only need one. You can use one API key to query any number of sensors.

When I recieved the Purple Airs the box has a quick start sticker. The 2nd step says to register device. I am wondering if I have to do this even though my sensors will not be deployed in an area with Wifi. I will only be using SD cards to collect the data.