diff --git a/README.md b/README.md
index f061afca0095a9bf4e7ade5a7a15c1ac7cd811b7..d0ec1028f98706193d70ecdc3ab382aa66048dbd 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,30 @@ for weather radar data.
 The obtained results can be processed and visualized with additional functions.
 The example program `radolan2png` is included to quickly convert composite files to png images.
 
-Currently the national and the extended european grids are supported.
-Tested input products are PG, FZ, SF, RW, RX and EX. Those can be considered working with
-sufficient accuracy.
+Besides local scans, the following grids are currently supported:
+- National Grid (900km x 900km)
+- National Picture Grid (920km x 920km)
+- Extended National Grid (900km x 1100km)
+- Middle-European Grid (1400km x 1500km)
+
+Tested input products: 
+| Product | Grid              | Description             |
+| ------- | ----------------- | ----------------------- |
+| EX      | middle-european   | reflectivity            |
+| FX      | national          | nowcast reflectivity    |
+| FZ      | national          | nowcast reflectivity    |
+| PE      | local             | echo top                |
+| PF      | local             | reflectivity            |
+| PG      | national picture  | reflectivity            |
+| PR      | local             | doppler radial velocity |
+| PX      | local             | reflectivity            |
+| PZ      | local             | 3D reflectivity CAPPI   | 
+| RW      | national          | hourly accumulated      |
+| RX      | national          | reflectivity            |
+| SF      | national          | daily accumulated       |
+| WX      | extended national | reflectivity            | 
+
+Those can be considered working with sufficient accuracy.
 
 ### Documentation
 Documentation is included in the corresponding source files and also available at
@@ -21,6 +42,6 @@ GOPATH="~/go" go get gitlab.cs.fau.de/since/radolan/radolan2png
 ```
 
 ### Sample image
-This image shows the radar reflectivity (dBZ) captured 31.07.2016 18:50 CEST
+This image shows radar reflectivity (dBZ) captured 31.07.2016 18:50 CEST
 ![alt text](https://gitlab.cs.fau.de/since/radolan/raw/master/assets/31-07-2016-1850.png)
-```Datenbasis: Deutscher Wetterdienst, Radardaten bildlich wiedergegeben```
+Datenbasis: Deutscher Wetterdienst, Radardaten bildlich wiedergegeben