This is a picture of 3 unfinished circles that connect to a square with one of the corners being cut off. There is a smaller, full square in the middle of the other square.
This RFID Sensor icon has Android KitKat style
. If you use the icons for Android apps, we recommend using our latest Material Icons icon pack (please check our sidebar on the right). Otherwise, it's a solid icon pack that looks good in small resolutions, either on the web or in print. It's characterized by thick lines, smooth corners, and is optimized for 24x24 pixels.